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: This is also called diffusion, and the process is much faster in gases than in liquids, because the particles in gases are further apart.
 Question: Diffusion occurs faster in 
 Choices: A)water 
B)oxygen.
[EX A]: oxygen.

[EX Q]: Paragraph: A decrease in greenhouse gas levels decreases global temperature and an increase raises global temperature.
 Question: If you are able to add greenhouse gases the temperature will 
 Choices: A)go up 
B)go down
[EX A]: go up

[EX Q]: Paragraph: The closer objects are, the stronger the gravitational pull between them.
 Question: If Milo is holding two oranges 5 feet apart and he moves them so they are 2 feet apart, what happens to the gravitational pull between the objects? 
 Choices: A)decreases 
B)increases
[EX A]:
increases