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: You can find tables that show the pH value of different fruits and vegetables. The fruits such as apples are barely acidic so they have a pH value that is 
 Choices: A)higher 
B)lower
[EX A]: higher

[EX Q]: Paragraph: Rougher surfaces have more friction between them than smoother surfaces.
 Question: If Mona is comparing sandpaper with notebook paper and she determines that sandpaper is rougher then notebook paper, which object has less friction? 
 Choices: A)sandpaper 
B)notebook paper
[EX A]: notebook paper

[EX Q]: Paragraph: On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body.
 Question: Karen is feeling very cool, and starts to chill. Her blood flow is decreased, likely because the day is 
 Choices: A)hot 
B)cold
[EX A]:
cold