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: When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser.
 Question: Sean is trying to see how fast the water molecules are moving in a container of water. He observes that the molecules are moving very slowly, so the temperature must be 
 Choices: A)cool 
B)warm
[EX A]: cool

[EX Q]: Paragraph: A stronger acid produces a greater concentration of ions than a weaker acid.
 Question: If Jim increases the strength of an acid he is playing with, the concentration of ions in that acid 
 Choices: A)falls 
B)rises
[EX A]: rises

[EX Q]: Paragraph: New farm machines were invented. They increased the amount of food that could be produced. With more food, people were healthier and could live longer.
 Question: A village is gathering food for the winter. The less food they gather the likelihood of survival being high is 
 Choices: A)great 
B)small
[EX A]:
small