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: The more extreme the amount of metamorphism, the more difficult it is to tell what the original rock was.
 Question: Evan is picking up rocks on the beach. Some rocks are very basic small ones, and others are large, clumpy stones with different textures. The rocks that are less difficult to identify had amounts of metamorphism that were 
 Choices: A)more extreme 
B)less extreme
less extreme

Paragraph: The higher the pH value is, the stronger the base.
 Question: If Mona is adjusting the pH levels of her fish tank and she makes the pH lower, what happens to the baseness of the water? 
 Choices: A)higher 
B)lower
lower

Paragraph: The stratosphere contains the ozone layer, the temperatures increase as altitude increases.
 Question: Dean is coming from space, and passes through the stratosphere. He looks at the temperature around him as he does, and he sees that as he heads toward the ground, the temperature 
 Choices: A)increases 
B)decreases

decreases