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 forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.
 Question: If a herd of elephants and humans are living happily in a forest and the humans then decide to move away, what happens to the elephants? 
 Choices: A)they decrease in number 
B)they increase in number
they increase in number

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 towards the core of the earth? 
 Choices: A)temperatures decrease 
B)temperatures increase
temperatures increase

Paragraph: So the higher an object is above a surface, the more potential energy it has.
 Question: The ball began to drop slowly above the table. The lower it drops above the table, the potential energy will 
 Choices: A)decrease 
B)increase.

decrease