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: For a given medium such as air, sound has a slower speed at lower temperatures.
Question: If Mary is blowing an air horn underwater and she raises the temperature of the water, what will happen to the speed of the sound waves generated by the air horn?
Choices: A)increase
B)decrease
increase

Paragraph: The closer to pH 14, the more strongly basic the solution.
Question: Evan was drinking water with pH 7. He also had bleach in his house of pH 12. Which liquid is more basic?
Choices: A)water
B)bleach
bleach

Paragraph: The farther the object is stretched or compressed, the greater its elastic potential energy is.
Question: When we compress a spring down a lot what happens to the potential energy?
Choices: A)increases
B)decreases
increases