instruction:
In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
question:
Question: A city will grow larger when the number of people who are there 
 Answer: grows
answer:
More people also means more clearing of land for agriculture and development.


question:
Question: If Milo is holding two objects close together and he decides to move them closer together, what happens to the gravitational force between the objects? 
 Answer: increases
answer:
The gravitational force between two objects decreases as the objects move further apart.


question:
Question: Jack is learning to play baseball, and wants the ball to go very far. In order to do this, Jack will need to hit the ball 
 Answer: harder
answer:

The will travel faster and farther if the batter hits it with more force.