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: Compared with a less powerful device, a more powerful device can either do more work in the same time or do the same work in less time.
 Question: If Mona downgrades her old computer to a less powerful model, what happens to the amount of work her computer can do? 
 Choices: A)decrease 
B)increase

A: decrease
****
Q: Paragraph: If the gas is heated, the particles will move faster as they gain more energy.
 Question: Dana wants the gas to move with as little energy as possible so the particles can move slowly. Dana will then do this to the gas 
 Choices: A)cool 
B)heat

A: cool
****
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 quickly, so the temperature must be 
 Choices: A)cool 
B)warm

A:
warm
****