Teacher: You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).
Teacher: Now, understand the problem? If you are still confused, see the following example:
Paragraph: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.
Question: John's town used to have lots of water, back when there were only a few hundred people. However, now that the town holds several thousand people, the water availability is
Choices: A)scarce
B)plentiful
Solution: scarce
Reason: Based on the information given in the paragraph, population growth will make water more scarce, so that is the correct answer.

Now, solve this instance: Paragraph: As humidity increases, the water potential gradient across the inside and outside the leaf become more equal, and so the rate of transpiration decreases.
Question: Joe noticed that the humidity inside the greenhouse was getting very high, so he opened the roof to let cooler air inside. Thus, when the water potential gradient across the inside and outside of the leaf becomes equal, the rate of transpiration will
Choices: A)increase
B)decrease.
Student:
decrease.