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).

Q: Paragraph: The trade-off when the threads are closer together, is that more turns of the screw or bolt are needed to do the job because the distance over which the input force must be applied is greater.
 Question: If Jim is screwing in two bolts and the first one has threads that are close together while the second one has threads that are far apart, which one must he apply greater force to? 
 Choices: A)first bolt 
B)second bolt

A: first bolt
****
Q: Paragraph: The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering.
 Question: If Mona is exploring different continents and she notices that Africa is cooler then North America, which continent will have more types of vegetation? 
 Choices: A)North America 
B)Africa

A: North America
****
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: To have more elephants, we should _____ forests near them. 
 Choices: A)increase 
B)decrease

A:
increase
****