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: Temperature increases with depth inside the Earth, so melting of rocks is more likely to occur at greater depths.
 Question: What happens when we head from the core towards the surface of the earth? 
 Choices: A)temperatures decrease 
B)temperatures increase
temperatures decrease

Paragraph: Countries with more industry produce more hazardous wastes than those with little industry.
 Question: James loved to travel the world. In his travels, he noticed that America contained a lot of industry while China contained not much industry at all. Which country produced less hazardous wastes? 
 Choices: A)America 
B)China
China

Paragraph: Because all electromagnetic waves travel at the same speed through space, a wave with a shorter wavelength must have a higher frequency, and vice versa.
 Question: Compared to microwaves do x-rays, which have a much shorter wavelength than microwaves, have a 
 Choices: A)lower frequency? 
B)higher frequency

higher frequency