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).
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
Example solution: scarce
Example explanation: Based on the information given in the paragraph, population growth will make water more scarce, so that is the correct answer.

Problem: Paragraph: The main law is the law of superposition. This law states that deeper rock layers are older than layers closer to the surface.
 Question: If Jim is exploring layers of rock and he moves closer to the surface, what happens to the age of the rock? 
 Choices: A)older 
B)younger
Solution: younger