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: Countries with more industry produce more hazardous wastes than those with little industry.
 Question: James loved to travel the world. In his travels, he noticed that America contained a lot of industry while China contained not much industry at all. Which country produced more hazardous wastes? 
 Choices: A)America 
B)China
[EX A]: America

[EX Q]: Paragraph: If salt is added to a volume of water, there are more molecules in the same volume, so the water is denser.
 Question: When water absorbs salt the water becomes 
 Choices: A)more dense 
B)less dense
[EX A]: more dense

[EX Q]: Paragraph: Decreasing air temperature increases atmospheric pressure.
 Question: John turned down the thermostat in his room. As the temperature of the room got lower, would the air pressure in the room 
 Choices: A)decrease? 
B)increase
[EX A]:
increase