In recent years the climate has been generally cool in northern Asia. But during periods when the average daily tempe...

Batman on June 2, 2014


I don't understand why (c) is the correct answer? Thanks

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Naz on June 4, 2014

Here, we are faced with a Paradox question. First we must identify the paradox, and then we will look for the answer choice that resolves the paradox.

Our paradox is that even though periods of higher than average daily temperatures and humidity in northern Asia resulted in slightly higher than normal levels of crop yields, it has been predicted that the crop yields are going to decrease in the next century when the average daily temperature and humidity are expected to increase.

Answer choice (C) resolves this paradox because if the climate in northern Asia has generally been too cool and dry in recent years for populations of many crop insect pests to become established, once the temperature and humidity rise in the next century, these pests will begin to flourish and diminish the yield of the crops. Thus, answer choice (C) explains how the crop yields could decrease next century even though the temperature and humidity are expected to increase.

Hope that helped! Let us know if you have any other questions.

Batman on June 8, 2014

Thanks a lot!!!^^