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Consumer advocate: In some countries, certain produce is
[#permalink]
01 Aug 2017, 10:45
01 Aug 2017, 10:45
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Question Stats:
57% (02:05) correct
43%
(02:23)
wrong
based on 665
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Consumer advocate: In some countries, certain produce is routinely irradiated with gamma rays in order to extend shelf life. There are, however, good reasons to avoid irradiated foods. First, they are exposed to the radioactive substances that produce the gamma rays. Second, irradiation can reduce the vitamin content of fresh foods, leaving behind harmful chemical residues. Third, irradiation spawns unique radiolytic products that cause serious health problems, including cancer.
Each of the following, if true, weakens the consumer advocate’s argument EXCEPT:
(A) Unique radiolytic products have seldom been found in any irradiated food.
(B) Cancer and other serious health problems have many causes that are unrelated to radioactive substances and gamma rays.
(C) A study showed that irradiation leaves the vitamin content of virtually all fruits and vegetables unchanged.
(D) The amount of harmful chemicals found in irradiated foods is less than the amount that occurs naturally in most kinds of foods.
(E) A study showed that the cancer rate is no higher among people who eat irradiated food than among those who do not.
Source: LSAT
Each of the following, if true, weakens the consumer advocate’s argument EXCEPT:
(A) Unique radiolytic products have seldom been found in any irradiated food.
(B) Cancer and other serious health problems have many causes that are unrelated to radioactive substances and gamma rays.
(C) A study showed that irradiation leaves the vitamin content of virtually all fruits and vegetables unchanged.
(D) The amount of harmful chemicals found in irradiated foods is less than the amount that occurs naturally in most kinds of foods.
(E) A study showed that the cancer rate is no higher among people who eat irradiated food than among those who do not.
Source: LSAT
Re: Consumer advocate: In some countries, certain produce is
[#permalink]
02 Aug 2017, 06:10
02 Aug 2017, 06:10
Expert Reply
Good Question.
Conclusion: Using Irradiation is not a good idea.
Premise:
Three reasons
1. Radioactive elements present in these rays and then may get into the food.
2. Health Problems
3. Vitamin Content reduced.
We need to find 4 weakeners of the conclusion.
I can find something that says these reasons are still better than what would have happened otherwise.
(A) Unique radiolytic products have seldom been found in any irradiated food. --> Okay, it is saying Reason 1 is not happening. OUT.
(B) Cancer and other serious health problems have many causes that are unrelated to radioactive substances and gamma rays.
(C) A study showed that irradiation leaves the vitamin content of virtually all fruits and vegetables unchanged. --> Vitamin is not changed. Awesome. OUT.
(D) The amount of harmful chemicals found in irradiated foods is less than the amount that occurs naturally in most kinds of foods. --> Oh, still better than the normal found. OUT.
(E) A study showed that the cancer rate is no higher among people who eat irradiated food than among those who do not. --> ok, same rate with or without. OUT.
Conclusion: Using Irradiation is not a good idea.
Premise:
Three reasons
1. Radioactive elements present in these rays and then may get into the food.
2. Health Problems
3. Vitamin Content reduced.
We need to find 4 weakeners of the conclusion.
I can find something that says these reasons are still better than what would have happened otherwise.
(A) Unique radiolytic products have seldom been found in any irradiated food. --> Okay, it is saying Reason 1 is not happening. OUT.
(B) Cancer and other serious health problems have many causes that are unrelated to radioactive substances and gamma rays.
(C) A study showed that irradiation leaves the vitamin content of virtually all fruits and vegetables unchanged. --> Vitamin is not changed. Awesome. OUT.
(D) The amount of harmful chemicals found in irradiated foods is less than the amount that occurs naturally in most kinds of foods. --> Oh, still better than the normal found. OUT.
(E) A study showed that the cancer rate is no higher among people who eat irradiated food than among those who do not. --> ok, same rate with or without. OUT.
Re: Consumer advocate: In some countries, certain produce is
[#permalink]
03 Aug 2017, 08:39
03 Aug 2017, 08:39
I am confused with the OA. Doesn't option B weaken the argument?
The conclusion is that irradiation is harmful. Weakening it would be:
1) it is not harmful or
2) the reasons provided in the argument isn't caused my irradiation.
"Cancer and other serious health problems have many causes that are unrelated to radioactive substances and gamma rays."
The statement above means that cancer is not related to the radioactive substances hence weakening the argument.
Can someone explain my mistake in understanding this?
The conclusion is that irradiation is harmful. Weakening it would be:
1) it is not harmful or
2) the reasons provided in the argument isn't caused my irradiation.
"Cancer and other serious health problems have many causes that are unrelated to radioactive substances and gamma rays."
The statement above means that cancer is not related to the radioactive substances hence weakening the argument.
Can someone explain my mistake in understanding this?
