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 car that is very heavy will accelerate 
 Answer: slower
answer:
The greater the mass of an object, the less it will accelerate when a given force is applied.


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: Which planet has the most gravity exerted on it from the Sun? 
 Answer: Mercury
answer:

Objects that are closer together have a stronger force of gravity.