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).

[Q]: 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
[A]: increase


[Q]: Paragraph: More pollutants mean poorer air quality.
 Question: Michael is studying the air quality of various cities. He finds that there are many more pollutants in the air in Mexico City, than there are in the air of Chicago. Therefore, the air quality will be higher in 
 Choices: A)Chicago 
B)Mexico City
[A]: Chicago


[Q]: Paragraph: If we have two materials with the same volume, the material with a higher mass will be more dense.
 Question: Tanya has a substance with mass 10kg. Logan has a substance with mass 5kg. If both substances are the same size, who has the less dense substance. 
 Choices: A)Tanya 
B)Logan
[A]:
Logan