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23 Sep 2024, 14:22
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1: nutritional and protein content for each kilogram
2: amount of nutrients that the plants take in
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
79% (01:49) correct
21%
(02:14)
wrong
based on 418
sessions
History
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Not Attempted Yet
Increased carbon dioxide levels are known to increase plant growth. For example, a recent study of wheat has shown that increased carbon dioxide results in a greater crop yield per acre of land. The study controlled for differences in watering, the use of fertilisers, and soil type and quality. The study also found that the increased yield resulting from increased carbon dioxide had a strong negative correlation with the amount of protein and nutritional value of each kilogram of wheat. The researchers hypothesised that the reason for this was because the growth was not accompanied by a similar increase in nutrient intake. In essence, they argued that the yield increased and diluted the protein and nutritional content for each kilogram.
Consider the following incomplete sentence:
As wheat yields increase because of increased carbon dioxide, the 1 decreases because the 2 has not increased.
Select for 1 and for 2 the options that create the sentence that most accurately states the main point of the passage above. Make only two selections, one in each column.
Consider the following incomplete sentence:
As wheat yields increase because of increased carbon dioxide, the 1 decreases because the 2 has not increased.
Select for 1 and for 2 the options that create the sentence that most accurately states the main point of the passage above. Make only two selections, one in each column.
| 1 | 2 | |
| the entire yield | ||
| nutritional and protein content for each kilogram | ||
| amount of nutrients that the plants take in | ||
| amount of carbon dioxide that the plants receive | ||
| dilution of protein and nutrional content |
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Official Answer
1: nutritional and protein content for each kilogram
2: amount of nutrients that the plants take in
25 Sep 2024, 10:05
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1. We are asked to fill in the blanks in the sentence: "As wheat yields increase because of increased carbon dioxide, the 1 decreases because the 2 has not increased".
2. From the text, we can note what increased and decreased:
- "increased carbon dioxide results in a greater crop yield per acre of land". The yield increases.
- "increased yield resulting from increased carbon dioxide had a strong negative correlation with the amount of protein and nutritional value of each kilogram of wheat". That means the amount of protein and nutritional value of each kilogram of wheat decreases.
- "the yield increased and diluted the protein and nutritional content for each kilogram". Diluting a value infers that it doesn't increase. So, the total protein and nutritional content didn't increase.
3. Now it can logically be noted that 1 has to be the amount of protein and nutritional value of each kilogram of wheat and 2 is the total protein and nutritional content. That means our answer is: 1 - nutritional and protein content for each kilogram; 2 - amount of nutrients that the plants take in.
2. From the text, we can note what increased and decreased:
- "increased carbon dioxide results in a greater crop yield per acre of land". The yield increases.
- "increased yield resulting from increased carbon dioxide had a strong negative correlation with the amount of protein and nutritional value of each kilogram of wheat". That means the amount of protein and nutritional value of each kilogram of wheat decreases.
- "the yield increased and diluted the protein and nutritional content for each kilogram". Diluting a value infers that it doesn't increase. So, the total protein and nutritional content didn't increase.
3. Now it can logically be noted that 1 has to be the amount of protein and nutritional value of each kilogram of wheat and 2 is the total protein and nutritional content. That means our answer is: 1 - nutritional and protein content for each kilogram; 2 - amount of nutrients that the plants take in.
