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).

[EX Q]: Paragraph: With less ozone in the stratosphere, more UV rays reach the ground.
 Question: If Milo lives in a country that starts producing pollution which causes the ozone layer to deplete, what happens to the amount of UV rays that can reach the ground? 
 Choices: A)increase 
B)decrease
[EX A]: increase

[EX Q]: Paragraph: When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction.
 Question: If you spend very little time working out your muscles will be 
 Choices: A)smaller 
B)larger
[EX A]: smaller

[EX Q]: Paragraph: The farther the object is stretched or compressed, the greater its elastic potential energy is.
 Question: Letting a stretched a rubber band become looser _____ its elastic potential energy. 
 Choices: A)decreases 
B)increases
[EX A]:
decreases