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).
One 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 is here: scarce
Explanation: Based on the information given in the paragraph, population growth will make water more scarce, so that is the correct answer.

Now, solve this: Paragraph: The more curved the surface of a lens is, the more it refracts light.
 Question: If Mona is building a new mirror and she wants it to refract more light, what should she do the surface of the lens? 
 Choices: A)make it more curved 
B)make it less curved
Solution:
make it more curved