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24 Jan 2025, 02:52
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Agricultural Researcher: After several years of declining crop yields due to droughts, Country A’s research center introduced a new hybrid seed specifically designed to be more drought-resistant. Before the introduction of the hybrid seed, farmers used a variety of traditional seeds that had varying levels of drought tolerance. After adopting the new hybrid seed, crop yields significantly improved across the country.
It would be most helpful to find out which of the following in order to assess whether the improvement in crop yields can properly be attributed to the new drought resistance quality of the hybrid seed?
A. What proportion of the farmers' total expenditure is spent on purchasing seeds?
B. Has there been a significant change in the local weather patterns, particularly in rainfall amounts, in the last two years?
C. Among all the crops planted, which seed type accounts for the largest proportion of the yield improvement?
D. Do any farmers continue to use traditional seeds along with the new hybrid seeds?
E. Are there more farms specializing in crops that are traditionally drought-resistant or in those that are typically more water-dependent?
It would be most helpful to find out which of the following in order to assess whether the improvement in crop yields can properly be attributed to the new drought resistance quality of the hybrid seed?
A. What proportion of the farmers' total expenditure is spent on purchasing seeds?
B. Has there been a significant change in the local weather patterns, particularly in rainfall amounts, in the last two years?
C. Among all the crops planted, which seed type accounts for the largest proportion of the yield improvement?
D. Do any farmers continue to use traditional seeds along with the new hybrid seeds?
E. Are there more farms specializing in crops that are traditionally drought-resistant or in those that are typically more water-dependent?
24 Jan 2025, 02:52
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Official Solution:
Agricultural Researcher: After several years of declining crop yields due to droughts, Country A’s research center introduced a new hybrid seed specifically designed to be more drought-resistant. Before the introduction of the hybrid seed, farmers used a variety of traditional seeds that had varying levels of drought tolerance. After adopting the new hybrid seed, crop yields significantly improved across the country.
It would be most helpful to find out which of the following in order to assess whether the improvement in crop yields can properly be attributed to the new drought resistance quality of the hybrid seed?
A. What proportion of the farmers' total expenditure is spent on purchasing seeds?
B. Has there been a significant change in the local weather patterns, particularly in rainfall amounts, in the last two years?
C. Among all the crops planted, which seed type accounts for the largest proportion of the yield improvement?
D. Do any farmers continue to use traditional seeds along with the new hybrid seeds?
E. Are there more farms specializing in crops that are traditionally drought-resistant or in those that are typically more water-dependent?
(A) Incorrect: this answer choice does not address whether the specific seed type caused the observed improvements in yields. It is irrelevant to our quest.
(B) Correct Answer: This choice helps us understand if external factors could have influenced crop yields, such as changes in regional weather patterns. If there has been an increase in rainfall, it might suggest that factors other than the drought-resistance properties of the new hybrid seed could have contributed to the improvement in yields.
(C) Incorrect: This seems like it should be the correct answer choice, but what if it was heavily raining the last 2 years? The hybrid seed may not have had the best results and another variety may have had the most yield improvement or worse - all seeds had the same yield. This choice is not as strong as B. Eliminate.
(D) Incorrect: This is another option that seems like it could be the correct answer. However, we are specifically wanting to know not whether the hybrid seed was driving up the crop yields but whether the drought-resistant feature is what’s driving the crop yields. What if the answer is yes - lots of farmers use traditional seeds along with the new hybrid seeds - how would we know that the drought-resistant hybrid seed properties were responsible for the increase in crop yields? or what if it was raining again and the rain has contributed to the crop yields? While this answer choice looks attractive at first, in reality, it does not give us sufficient details and is not as good as B. Eliminate.
(E) Incorrect: This answer choice was designed to be a confusing and irrelevant. Knowing the types of farms does not help us understand the impact of the new drought-resistance features of the hybrid seed on crop yields.
Answer: B
Agricultural Researcher: After several years of declining crop yields due to droughts, Country A’s research center introduced a new hybrid seed specifically designed to be more drought-resistant. Before the introduction of the hybrid seed, farmers used a variety of traditional seeds that had varying levels of drought tolerance. After adopting the new hybrid seed, crop yields significantly improved across the country.
It would be most helpful to find out which of the following in order to assess whether the improvement in crop yields can properly be attributed to the new drought resistance quality of the hybrid seed?
A. What proportion of the farmers' total expenditure is spent on purchasing seeds?
B. Has there been a significant change in the local weather patterns, particularly in rainfall amounts, in the last two years?
C. Among all the crops planted, which seed type accounts for the largest proportion of the yield improvement?
D. Do any farmers continue to use traditional seeds along with the new hybrid seeds?
E. Are there more farms specializing in crops that are traditionally drought-resistant or in those that are typically more water-dependent?
(A) Incorrect: this answer choice does not address whether the specific seed type caused the observed improvements in yields. It is irrelevant to our quest.
(B) Correct Answer: This choice helps us understand if external factors could have influenced crop yields, such as changes in regional weather patterns. If there has been an increase in rainfall, it might suggest that factors other than the drought-resistance properties of the new hybrid seed could have contributed to the improvement in yields.
(C) Incorrect: This seems like it should be the correct answer choice, but what if it was heavily raining the last 2 years? The hybrid seed may not have had the best results and another variety may have had the most yield improvement or worse - all seeds had the same yield. This choice is not as strong as B. Eliminate.
(D) Incorrect: This is another option that seems like it could be the correct answer. However, we are specifically wanting to know not whether the hybrid seed was driving up the crop yields but whether the drought-resistant feature is what’s driving the crop yields. What if the answer is yes - lots of farmers use traditional seeds along with the new hybrid seeds - how would we know that the drought-resistant hybrid seed properties were responsible for the increase in crop yields? or what if it was raining again and the rain has contributed to the crop yields? While this answer choice looks attractive at first, in reality, it does not give us sufficient details and is not as good as B. Eliminate.
(E) Incorrect: This answer choice was designed to be a confusing and irrelevant. Knowing the types of farms does not help us understand the impact of the new drought-resistance features of the hybrid seed on crop yields.
Answer: B
03 Jun 2025, 05:12
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Hi Bunuel
This is an Evaluate type of question. If there is heavy rainfall during the 2 years - yes then the yeild was better it is due to new hybrid seeds other features other than drough resistance.
If there is Heavy rainfall - No . then the yeild was due to Drought resistance features.
But in case of evaluate question, Yes/No both should not support the conclusion right? Can you help me understand
This is an Evaluate type of question. If there is heavy rainfall during the 2 years - yes then the yeild was better it is due to new hybrid seeds other features other than drough resistance.
If there is Heavy rainfall - No . then the yeild was due to Drought resistance features.
But in case of evaluate question, Yes/No both should not support the conclusion right? Can you help me understand
