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: So the higher an object is above a surface, the more potential energy it has.
 Question: Dane is dropping bouncy balls out of windows. He drops a green ball out of the first story window, then a red ball out of the second story window. The ball with the least potential energy is the 
 Choices: A)red ball 
B)green ball
answer:
green ball


question:
Paragraph: Because richer nations use more fossil fuels, they also cause more air pollution and global warming than poorer nations do.
 Question: If Jim's country increases use of fossil fuels, what will happen to the amount of pollution it produces? 
 Choices: A)increase 
B)decrease
answer:
increase


question:
Paragraph: Electrons at lower energy levels, which are closer to the nucleus, have less energy.
 Question: Electrons closer to a nucleus have _____ energy levels than further away ones. 
 Choices: A)higher 
B)lower
answer:
lower