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).

[Q]: 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
[A]: it increases


[Q]: Paragraph: In bigger atoms, valence electrons are farther from the nucleus.
 Question: If Mona is measuring atoms and she finds out that one atom is larger then another, what does that imply about the distance of electrons from the nucleus of that atom? 
 Choices: A)closer together 
B)farther away
[A]: farther away


[Q]: Paragraph: When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction.
 Question: If Bob starts exercising, his heart muscle should become 
 Choices: A)stronger 
B)weaker
[A]:
stronger