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: The closer together the particles are, the greater the amplitude of the wave.
Question: A wave's amplitude will be _____ the closer its particles become.
Choices: A)higher
B)lower
[EX A]: higher

[EX Q]: Paragraph: The forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.
Question: When humans grow trees what happens to the population of the animals in the forest
Choices: A)Lower
B)Increase
[EX A]: Increase

[EX Q]: Paragraph: The more tightly packed the particles inside the material are, the more dense we say they are.
Question: Eric has a soccer ball and kicks it into a rock of roughly the same size. The rock doesn't move and the ball bounces away. The rock is _____ dense than the ball.
Choices: A)less
B)more
[EX A]:
more