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: Acids have pH values below 7. The lower the pH value, the more strongly acidic the substance.
 Question: Milo was playing around with water by changing the pH level. If he lowered the pH what would happen to the acidity of the solution? 
 Choices: A)it would decrease 
B)it would increase
[EX A]: it would increase

[EX Q]: Paragraph: Smaller sediments are dropped as the slope becomes less steep.
 Question: When looking at a hill, Shane sees that the sand on the low slopes is 
 Choices: A)finer 
B)thicker
[EX A]: thicker

[EX Q]: Paragraph: Air pressure is less at higher elevations.
 Question: Marcus is climbing a mountain, and notices that it is more difficult to breathe than it was before. This is likely because Marcus is at a 
 Choices: A)lower elevation 
B)higher elevation
[EX A]:
higher elevation