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: For example, more people on the Earth means more people contributing to global warming and pollution.
 Question: What will happen to the levels of pollution on Earth if the population increases? 
 Choices: A)they will rise 
B)they will fall
[EX A]: they will rise

[EX Q]: Paragraph: Its harder to overcome friction between heavier objects and the floor than it is between lighter objects and the floor.
 Question: Fred was moving a desk across the room. He then pushed a chair and it was much easier. This is because the lighter chair had _____ friction with the floor. 
 Choices: A)less 
B)more
[EX A]: less

[EX Q]: Paragraph: Water density increases as salinity and pressure increase, or as temperature decreases.
 Question: Shannon is swimming and wants to find the least dense water to soak in. She will find water that has a pressure that is 
 Choices: A)lower 
B)higher
[EX A]:
lower