instruction:
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).
question:
Paragraph: The higher up a food chain that humans eat, the greater the levels of toxic metals they take in.
 Question: A human who eats an animal that is low on the food chain should take in _____ toxic metals. 
 Choices: A)more 
B)less
answer:
less


question:
Paragraph: The stratosphere contains the ozone layer, the temperatures increase as altitude increases.
 Question: Tina flew lower and lower into the stratosphere. The temperature of her ship 
 Choices: A)increases 
B)decreases
answer:
decreases


question:
Paragraph: Older rocks are at the bottom and younger rocks are at the top.
 Question: A person is digging up rocks, and wants to get the newest ones. The person will dig 
 Choices: A)deeper 
B)shallower
answer:
shallower