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# One proposal for preserving rain forests is to promote the adoption of

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NandishSS
HI GMATNinja, mikemcgarry, egmat, sayantanc2k, RonPurewal, DmitryFarber, MagooshExpert (Carolyn),

ccooley, GMATNinjaTwo, SarahPurewal

Quote:
1) The primary purpose of the passage is to

A. evaluate the likelihood that a particular proposal, if implemented, would ultimately succeed in achieving its intended result

B. question the assumption that certain technological innovations are the most effective means of realizing a particular environmental objective

C. discuss the progress of efforts to encourage a particular traditional society to adopt certain modern agricultural methods

D. present the results of new research suggesting that previous findings concerning one set of conditions may not be generalizable to another set of conditions

E. weigh the relative importance of three factors in determining whether a particular strategy will be successful
Hi NandishSS!

Happy to help

For primary purpose questions like this, I like to break the passage down into super simple parts, based on what the author is doing. Let's do that here:

Quote:
One proposal for preserving rain forests is to promote the adoption of new agricultural technologies, such as improved plant varieties and use of chemical herbicides, which would increase productivity and slow deforestation by reducing demand for new cropland.

-author is presenting a proposal, introducing the topic

Quote:
Studies have shown that farmers in developing countries who have achieved certain levels of education, wealth, and security of land tenure are more likely to adopt such technologies.

-author is providing more detail, based on certain studies

Quote:
But these studies have focused on villages with limited land that are tied to a market economy rather than on the relatively isolated, self-sufficient communities with ample land characteristic of rain-forest regions.

-author is questioning the relevance of those original studies

Quote:
A recent study of the Tawahka people of the Honduran rain forest found that farmers with some formal education were more likely to adopt improved plant varieties but less likely to use chemical herbicides and that those who spoke Spanish (the language of the market economy) were more likely to adopt both technologies. Non-land wealth was also associated with more adoption of both technologies, but availability of uncultivated land reduced the incentive to employ the productivity-enhancing technologies. Researchers also measured land-tenure security: in Tawahka society, kinship ties are a more important indicator of this than are legal property rights, so researchers measured it by a household’s duration of residence in its village. They found that longer residence correlated with more adoption of improved plant varieties but less adoption of chemical herbicides.

-author is providing a lot of evidence that contradicts those original studies for specific situations

Now, let's look at it all together, visually -- what does the author spend the most time doing? Often, that's a really good indication of the "primary purpose". The majority of the passage is used to provide evidence about specific situations that question the relevance of the original studies to those specific situations. Let's now look back at the answer choices to see which one of those fits the best. The one that matches best is D: present the results of new research suggesting that previous findings concerning one set of conditions may not be generalizable to another set of conditions.

Does that make sense? If not, let me know
-Carolyn
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This how I would go about answering this questions. As I'm reading, I want to make a note of few points mentioned in the paragraph..

Quote:
with ample land characteristic of rain-forest regions
. The study phrase gives you multiple combinations such as educated or not, non land wealth, inheritance through kin,.. blah.. I would skim through these scenarios...

Next, I would read the question and go back and re-read the multiple combinations of the study one-by-one and you would come across the following phrase -
Quote:
but availability of uncultivated land reduced the incentive to employ the productivity-enhancing technologies.

Using the two quoted phrase, you should be able to select D.

//Kudos please, if the above explanation is good
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Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]
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tricky and nasty passage, though is short

A

Studies have shown that farmers in developing countries who have achieved certain levels of education, wealth, and security of land tenure are more likely to adopt such technologies. But these studies have focused on villages with limited land that are tied to a market economy rather than on the relatively isolated, self-sufficient communities

As you can se you can not generalize the study

B

such as improved plant varieties and use of chemical herbicides,

is the contrary , so C is the exception

C

Researchers also measured land-tenure security: in Tawahka society, kinship ties are a more important indicator of this than are legal property rights, so researchers measured it by a household’s duration of residence in its village. They found that longer residence correlated with more adoption of improved plant varieties but less adoption of chemical herbicides.

pretty much clear

D

Ready availability of uncultivated land tends to decrease local farmers’ incentive to adopt new agricultural technologies that would reduce their need to clear new land for cultivation.

Enhancing the productivity of the land owned and not going to cultivate other lands; indeed the gist of the passage

Hope is clear
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Soumyasrinivas
Can someone explain the choices for Qn 2 & 3?
@Carcass..If you would be kind enough!

thank you!

Question 2 asks what line 1's proposal doesn't do, line 1's proposal is to preserve rain forests by helping local farmers through a few methods.
a lot of answer choices are word-by-word, so it's quick elimination

A: adopt new technology <- it's covered, the proposal is supposed to promote new technologies
B: grow plant varieties <- it's covered, one of the new technologies is plant varieties+
C: decrease herbicides <- OA, line 1 does mention improved use of chemical herbicides, but it never mentioned whether improved = decreased herbicides, I don't even know what herbicides are
D: increase productivity <- the proposal's promotion of new tech will increase productivity
E: reduce their need to clear new land for cultivation <- the proposal slows deforestation by reducing demand for new cropland

Question 3 is very tricky because it's incredibly wordy and also because OP didn't point out where line 27 is.
I assumed that the study refers to
Quote:
Researchers also measured land-tenure security: in Tawahka society, kinship ties are a more important indicator of this than are legal property rights, so researchers measured it by a household’s duration of residence in its village. They found that longer residence correlated with more adoption of improved plant varieties but less adoption of chemical herbicides.

The question asks what we can imply from this statement. Take note that leaps of logic is prohibited and GMAT wants us to pick the most boring and droning answer.

let's take a look at some answers, we'll scan out some keywords so we don't drown:

Quote:
A. The security of a household’s land tenure depends on the strength of that household’skinship ties, and the duration of a household’s residence in its village is an indication of the strength of that household’s kinship ties.

refers to land security and household duration, didn't introduce anything out-of-scope, looks like a winner.

Quote:
B. The ample availability of land makes security ofland tenure unimportant, and the lack of a need for secure land tenure has made the concept of legal property rights unnecessary.

I stopped at land tenure unimportant, kinship is more important than legal property rights (for indicating land security), but they didn't say anything about land tenure being unimportant.

Quote:
C. The strength of a household’s kinship ties is amore reliable indicator of that household’s receptivity to new agricultural technologies than is its quantity of non land wealth, and the duration of a household’s residence in its village is a more reliable indicator of that household’s security of land tenure than is the strength of its kinship ties.

line 27 refers kinship ties as an indicator of land security, the receptivity is not taken into consideration
some might assume that land security = more reception, but the article didn't say anything about secure farmers adopting new technologies
the only mention of receptivity is based on education, language skills and non-land wealth

Quote:
D. Security of land tenure based on kinship ties tends to make farmers more receptive to the use of improved plant varieties, and security of land tenure based on long duration of residence in a village tends to make farmers more receptive to the use of chemical herbicides.

see C

Quote:
E. A household is more likely to be receptive to the concept of land tenure based on legal property rights if it has easy access to uncultivated land, and a household is more likely to uphold the tradition of land tenure based on kinship ties if it possesses a significant degree of non-land wealth.
there is no mention of any farmer's reception on land tenure, we don't know what the farmers actually liked, the research is only talking about measuring land security
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Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]
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Soumyasrinivas
Can someone explain the choices for Qn 2 & 3?
@Carcass..If you would be kind enough!

thank you!

Question 2 asks what line 1's proposal doesn't do, line 1's proposal is to preserve rain forests by helping local farmers through a few methods.
a lot of answer choices are word-by-word, so it's quick elimination

A: adopt new technology <- it's covered, the proposal is supposed to promote new technologies
B: grow plant varieties <- it's covered, one of the new technologies is plant varieties+
C: decrease herbicides <- OA, line 1 does mention improved use of chemical herbicides, but it never mentioned whether improved = decreased herbicides, I don't even know what herbicides are
D: increase productivity <- the proposal's promotion of new tech will increase productivity
E: reduce their need to clear new land for cultivation <- the proposal slows deforestation by reducing demand for new cropland

Question 3 is very tricky because it's incredibly wordy and also because OP didn't point out where line 27 is.
I assumed that the study refers to
Quote:
Researchers also measured land-tenure security: in Tawahka society, kinship ties are a more important indicator of this than are legal property rights, so researchers measured it by a household’s duration of residence in its village. They found that longer residence correlated with more adoption of improved plant varieties but less adoption of chemical herbicides.

The question asks what we can imply from this statement. Take note that leaps of logic is prohibited and GMAT wants us to pick the most boring and droning answer.

let's take a look at some answers, we'll scan out some keywords so we don't drown:

Quote:
A. The security of a household’s land tenure depends on the strength of that household’skinship ties, and the duration of a household’s residence in its village is an indication of the strength of that household’s kinship ties.

refers to land security and household duration, didn't introduce anything out-of-scope, looks like a winner.

Quote:
B. The ample availability of land makes security ofland tenure unimportant, and the lack of a need for secure land tenure has made the concept of legal property rights unnecessary.

I stopped at land tenure unimportant, kinship is more important than legal property rights (for indicating land security), but they didn't say anything about land tenure being unimportant.

Quote:
C. The strength of a household’s kinship ties is amore reliable indicator of that household’s receptivity to new agricultural technologies than is its quantity of non land wealth, and the duration of a household’s residence in its village is a more reliable indicator of that household’s security of land tenure than is the strength of its kinship ties.

line 27 refers kinship ties as an indicator of land security, the receptivity is not taken into consideration
some might assume that land security = more reception, but the article didn't say anything about secure farmers adopting new technologies
the only mention of receptivity is based on education, language skills and non-land wealth

Quote:
D. Security of land tenure based on kinship ties tends to make farmers more receptive to the use of improved plant varieties, and security of land tenure based on long duration of residence in a village tends to make farmers more receptive to the use of chemical herbicides.

see C

Quote:
E. A household is more likely to be receptive to the concept of land tenure based on legal property rights if it has easy access to uncultivated land, and a household is more likely to uphold the tradition of land tenure based on kinship ties if it possesses a significant degree of non-land wealth.
there is no mention of any farmer's reception on land tenure, we don't know what the farmers actually liked, the research is only talking about measuring land security

Hi,

That helped a lot! Thank you for the detailed explanation.

Regards
Soumya
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Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]
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Is the difficulty level, which is 600-700 right now, of the passage correct?

In Q4, I was stuck among B,C and D. Can someone please guide why B and C are wrong.
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Is the difficulty level, which is 600-700 right now, of the passage correct?

In Q4, I was stuck among B,C and D. Can someone please guide why B and C are wrong.

The findings of the study mentioned in the highlighted text, if valid for rain-forest regions in general, suggest that which of the following is an obstacle most likely to be faced by those wishing to promote rain-forest preservation by implementing the proposal mentioned in line 1?

Case study scenario is assumed to be valid for rain forest regions in general.

A. Lack of legal property rights tends to discourage local farmers from investing the time and resources required to successfully implement new agricultural technologies.
They gave more importance to kinship ties than legal property rights. This is not true.
B. The ability to evaluate the wider economic ramifications of adopting new agricultural technologies depends on a relatively high level of formal education.
farmers with certain level of education are known to adopt new tech but neither ability to evaluate ramifications is mentioned nor high level of formal education. Incorrect.
C. Isolation from the market economy tends to restrict local farmers’ access to new agricultural technologies that could help them to increase their productivity.
Quote:
studies have focused on villages with limited land that are tied to a market economy rather than on the relatively isolated, self-sufficient communities with ample land characteristic of rain-forest regions.
having only said this, info in option C cannot not be deduced from passage.

D. Ready availability of uncultivated land tends to decrease local farmers’ incentive to adopt new agricultural technologies that would reduce their need to clear new land for cultivation.
This is mentioned in below sentence in passage.
Quote:
but availability of uncultivated land reduced the incentive to employ the productivity-enhancing technologies.

E. Traditions of self-sufficiency and reliance on kinship ties tend to diminish local farmers’ receptivity to new agricultural technologies introduced by people from outside the local community
self sufficiency may discourage framers to new tech but we don't have reason to say that kinship ties can result in such cases.
people from inside or outside the community is out of scope.
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Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]
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-The author talks about a proposal for preserving rain forests
-The author then describes potential reasons why the proposal might not be accepted in certain regions
- He illustrates the above point with the example of the Tawahka people

1. The author clearly mentions that the proposal will not work under conditions where an ample amount of uncultivated land is available. Hence Option (D) is the best answer choice.

2. the adoption of new agricultural technologies, such as improved plant varieties and use of chemical herbicides, which would increase productivity and slow deforestation by reducing demand for new cropland

3. "in Tawahka society, kinship ties are a more important indicator of this than are legal property rights, so researchers measured it by a household’s duration of residence in its village."
The above excerpt indicates that kinship ties are related to the duration of the household's residence it its village. Hence option (A) is the right answer.

4."But these studies have focused on villages with limited land that are tied to a market economy rather than on the relatively isolated, self-sufficient communities with ample land characteristic of rain-forest regions."

The above suggests that an availability of land might prove to be a hindrance for the implementation of the suggested proposal. Hence option (D) is the right answer.
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Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]
Can you please explain how did we arrived at option C for Ques 2? Why option E is wrong ?
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Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]
HI GMATNinja, mikemcgarry, egmat, sayantanc2k, RonPurewal, DmitryFarber, MagooshExpert (Carolyn),

ccooley, GMATNinjaTwo, SarahPurewal

Quote:
1) The primary purpose of the passage is to

A. evaluate the likelihood that a particular proposal, if implemented, would ultimately succeed in achieving its intended result

B. question the assumption that certain technological innovations are the most effective means of realizing a particular environmental objective

C. discuss the progress of efforts to encourage a particular traditional society to adopt certain modern agricultural methods

D. present the results of new research suggesting that previous findings concerning one set of conditions may not be generalizable to another set of conditions

E. weigh the relative importance of three factors in determining whether a particular strategy will be successful
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avvbh
Can you please explain how did we arrived at option C for Ques 2? Why option E is wrong ?

Increasing productivity leads to a conclusion that more yield per acre could be obtained and therefore, the need to reduce the land for cultivation is implied in it. We need to find an option that clearly states the correct answer, without any doubt.

The author has mentioned importance of "improved plant varieties and use of chemical herbicides" -- This shows that the author has not agreed to reducing the use of chemical herbicides.
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Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]
Hello Moderators ( mikemcgarry, GMATNinja, GMATNinjaTwo, workout, Gnpth, broall ) / Experts,

Please tag this passage with the appropriate difficulty level. Passage : One proposal for preserving rain forests is to promote the adop OG2019.

In my personal opinion its a nice GMAT read. I really liked the information flow (although got injured in few of the lines ). But, the tremendous volume of words in the Q1 made it a bit tough for slow comprehend-ers like me.

Is it GMAT standard timimg..... if one can finish the passage with correct answers in 6.5 - 7.5 mins...... or is that would be considered as a V-score damaging sign.

Thanks in appreciation
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Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]

Is not this correct text of passage I should be relating to for answering Q4:

Quote:
but the availability of uncultivated land reduced the incentive to employ the productivity-enhancing technologies.

instead of one mentioned by Skywalker18

Quote:
Q4: The findings of the study mentioned in the highlighted text, if valid for rain-forest regions in general, suggest that which of the following is an obstacle most likely to be faced by those wishing to promote rain-forest preservation by implementing the proposal mentioned in line 1?

What is proposal mentioned in Line -1 : promote the adoption of new agricultural technologies

Findings of the study:

Non-land wealth was also associated with more adoption of both technologies, but availability of uncultivated land reduced the incentive to employ the productivity-enhancing technologies.

Quote:
A. Lack of legal property rights tends to discourage local farmers from investing the time and resources required to successfully implement new agricultural technologies.
Out because underlined portion is not mentioned in the argument.

Quote:
B. The ability to evaluate the wider economic ramifications of adopting new aricultural technologies depends on a relatively high level of formal education.
I feel in to this trap answer, but is it incorrect because of italics?

Quote:
C. Isolation from the market economy tends to restrict local farmers’ access to new agricultural technologies that could help them to increase their productivity.
Not mentioned in passage as result of study

Quote:
D. Ready availability of uncultivated land tends to decrease local farmers’ incentive to adopt new agricultural technologies that would reduce their need to clear new land for cultivation.
I could not link this to OA.

Quote:
E. Traditions of self-sufficiency and reliance on kinship ties tend to diminish local farmers’ receptivity to new agricultural technologies introduced by people from outside the local community.
Opposte of this is mentioned in passage, ie. Traditions of self-sufficiency and reliance on kinship ties tend to enhance local farmers’ receptivity to new agricultural technologies
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New GMAT Prep RC Project: 1 RC Every day. Don't forget to time yourself with the stopwatch below to earn kudos.

One proposal for preserving rain forests is to promote the adoption of new agricultural technologies, such as improved plant varieties and use of chemical herbicides, which would increase productivity and slow deforestation by reducing demand for new cropland. Studies have shown that farmers in developing countries who have achieved certain levels of education, wealth, and security of land tenure are more likely to adopt such technologies. But these studies have focused on villages with limited land that are tied to a market economy rather than on the relatively isolated, self-sufficient communities with ample land characteristic of rain-forest regions. A recent study of the Tawahka people of the Honduran rain forest found that farmers with some formal education were more likely to adopt improved plant varieties but less likely to use chemical herbicides and that those who spoke Spanish (the language of the market economy) were more likely to adopt both technologies. Non-land wealth was also associated with more adoption of both technologies, but availability of uncultivated land reduced the incentive to employ the productivity-enhancing technologies. Researchers also measured land-tenure security: in Tawahka society, kinship ties are a more important indicator of this than are legal property rights, so researchers measured it by a household’s duration of residence in its village. They found that longer residence correlated with more adoption of improved plant varieties but less adoption of chemical herbicides.
1) The primary purpose of the passage is to

A. evaluate the likelihood that a particular proposal, if implemented, would ultimately succeed in achieving its intended result

B. question the assumption that certain technological innovations are the most effective means of realizing a particular environmental objective

C. discuss the progress of efforts to encourage a particular traditional society to adopt certain modern agricultural methods

D. present the results of new research suggesting that previous findings concerning one set of conditions may not be generalizable to another set of conditions

E. weigh the relative importance of three factors in determining whether a particular strategy will be successful

2) According to the passage, the proposal mentioned in line 1 is aimed at preserving rain forests by encouraging farmers in rain-forest regions to do each of the following EXCEPT

B. grow improved plant varieties
C. decrease their use of chemical herbicides
D. increase their productivity
E. reduce their need to clear new land for cultivation

3) The passage suggests that in the study mentioned in the highlighted text the method for gathering information about security of land tenure reflects which of the following pairs of assumptions about Tawahka society?

A. The security of a household’s land tenure depends on the strength of that household’s kinship ties, and the duration of a household’s residence in its village is an indication of the strength of that household’s kinship ties.

B. The ample availability of land makes security of land tenure unimportant, and the lack of a need for secure land tenure has made the concept of legal property rights unnecessary.

C. The strength of a household’s kinship ties is a more reliable indicator of that household’s receptivity to new agricultural technologies than is its quantity of nonland wealth, and the duration of a household’s residence in its village is a more reliable indicator of that household’s security of land tenure than is the strength of its kinship ties.

D. Security of land tenure based on kinship ties tends to make farmers more receptive to the use of improved plant varieties, and security of land tenure based on long duration of residence in a village tends to make farmers more receptive to the use of chemical herbicides.

E. A household is more likely to be receptive to the concept of land tenure based on legal property rights if it has easy access to uncultivated land, and a household is more likely to uphold the tradition of land tenure based on kinship ties if it possesses a significant degree of non-land wealth.

4) The findings of the study mentioned in the highlighted text, if valid for rain-forest regions in general, suggest that which of the following is an obstacle most likely to be faced by those wishing to promote rain-forest preservation by implementing the proposal mentioned in line 1?

A. Lack of legal property rights tends to discourage local farmers from investing the time and resources required to successfully implement new agricultural technologies.

B. The ability to evaluate the wider economic ramifications of adopting new aricultural technologies depends on a relatively high level of formal education.

C. Isolation from the market economy tends to restrict local farmers’ access to new agricultural technologies that could help them to increase their productivity.

D. Ready availability of uncultivated land tends to decrease local farmers’ incentive to adopt new agricultural technologies that would reduce their need to clear new land for cultivation.

E. Traditions of self-sufficiency and reliance on kinship ties tend to diminish local farmers’ receptivity to new agricultural technologies introduced by people from outside the local community.

4) The findings of the study mentioned in the highlighted text, if valid for rain-forest regions in general, suggest that which of the following is an obstacle most likely to be faced by those wishing to promote rain-forest preservation by implementing the proposal mentioned in line 1?

A. Lack of legal property rights tends to discourage local farmers from investing the time and resources required to successfully implement new agricultural technologies.

B. The ability to evaluate the wider economic ramifications of adopting new aricultural technologies depends on a relatively high level of formal education.

C. Isolation from the market economy tends to restrict local farmers’ access to new agricultural technologies that could help them to increase their productivity.

D. Ready availability of uncultivated land tends to decrease local farmers’ incentive to adopt new agricultural technologies that would reduce their need to clear new land for cultivation.

E. Traditions of self-sufficiency and reliance on kinship ties tend to diminish local farmers’ receptivity to new agricultural technologies introduced by people from outside the local community.

This is what the first line says "One proposal for preserving rain forests is to promote the adoption of new agricultural technologies"
The proposal is to adopt new agricultural technologies.

This sentence "but availability of uncultivated land reduced the incentive to employ the productivity-enhancing technologies" connects to (D) perfectly. What confused you was perhaps this - "that would reduce their need to clear new land for cultivation"
This is just some info on new technologies which links to the first part of (D) - ready availability of land. Since land is readily available, new technologies (which help to reduce the need to clear new land) are not needed. When land is limited, these technologies would help since they would reduce the need for new land (if you can increase the productivity of current land using tech, you wouldn't need new land much). When land is available, these technologies would not be required.

A. Lack of legal property rights tends to discourage local farmers from investing the time and resources required to successfully implement new agricultural technologies.

"Household’s duration of residence in its village" was considered, not "legal property rights".

B. The ability to evaluate the wider economic ramifications of adopting new aricultural technologies depends on a relatively high level of formal education.

Rain-forest regions are relatively isolated, self-sufficient communities with ample land - not tied to a market economy. So economic ramifications are irrelevant.

C. Isolation from the market economy tends to restrict local farmers’ access to new agricultural technologies that could help them to increase their productivity.

Rain forest regions are usually economically isolated so this is not a factor that influences whether the farmers use new technologies.

E. Traditions of self-sufficiency and reliance on kinship ties tend to diminish local farmers’ receptivity to new agricultural technologies introduced by people from outside the local community.

Incorrect. Given that "longer residence (reliance on kinship) correlated with more adoption of improved plant varieties but less adoption of chemical herbicides."
So they are more receptive to some new tech and less receptive to other new tech.
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1. Primary purpose: present the results of new research suggesting that previous findings concerning one set of conditions may not be generalizable to another set of conditions
The passage begins with one of the proposal to preserve the rainforest based on a research. And then shows the gap in the research ( But these studies have focused on villages with limited land that are tied to a market economy rather than on the relatively isolated, self-sufficient communities with ample land characteristic of rain-forest regions). And then proceeds to provide a new research data presenting various reasons and facts on why old research conclusion is not applicable universally. Hence the option D is the clear winner.
2. Straightforward question: the only thing to look out is EXCEPT. clearly, the answer is C, because the passage speaks about the beneficiary usage of chemical herbicides and not against it.
3. The highlighted text "the study" states Tawahka people of the Honduran rain forest found that farmers with some formal education were more likely to adopt improved plant varieties. Hence the Assumption or missing link as per the passage states : in Tawahka society, kinship ties are a more important indicator ...., so researchers measured it by a household’s duration of residence in its village. They found that longer residence correlated with more adoption of improved plant varieties
Hence A
4. one of the reasons the old research could not be generalized is stated in the passage " But these studies have focused on villages with limited land that are tied to a market economy rather than on the relatively isolated, self-sufficient communities with ample land characteristic of rain-forest regions."
It gives us a clear understanding of a major obstacle in the implementation of the proposal. Hence D
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Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]
avvbh
Can you please explain how did we arrived at option C for Ques 2? Why option E is wrong ?

The first few lines of this passage states that the proposal advocated increased use of chemical herbicides.

Hope it helps.
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Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]
avvbh

E is wrong, because it is mentioned in the first sentence as a part of the proposal: "[...] and slow deforestation by reducing demand for new cropland." = "reduce their need to clear new land for cultivation"

D is wrong, because the proposal recommends to increase the use of chemical herbicides, not decrease it.
Re: One proposal for preserving rain forests is to promote the adoption of [#permalink]
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