Detailed Instructions: 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).
Problem:Paragraph: Acids have pH values below 7. The lower the pH value, the more strongly acidic the substance.
 Question: If Mary is cleaning her pool and she lowers the pH value of the water, what happens to the acidity of the water? 
 Choices: A)increases 
B)decreases
Solution:
increases