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).

Paragraph: Warm water cant hold as much dissolved oxygen as cool water, so an increase in the temperature of water decreases the amount of oxygen it contains.
 Question: Jeff cooled the pot of boiling water. What happens to the dissolved oxygen contained within the water? 
 Choices: A)it increases 
B)it decreases
it increases

Paragraph: Breast cancer is rare in teens. It becomes more common as women get older.
 Question: Dana goes with her mother to get screened for breast cancer. The person who is more likely to have it has an age that is 
 Choices: A)higher 
B)lower
higher

Paragraph: The more acidic a solution is, the closer its pH value will be to 0
 Question: Erin is trying to get her solution to have a pH as close to zero as possible. The best way for Erin to do that is to have the acidity of the solution 
 Choices: A)decrease 
B)increase
increase