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.
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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: Planets moving apart means there will be _____ gravitational force between them. 
 Answer: less

Answer: The further objects are away from each other, the smaller the gravitational force.


Question: Question: If Mona sells her gas car and switches to an electric car, what will happen to the amount of pollution she produces? 
 Answer: decrease

Answer:
Plug-in hybrids run for a longer time on electricity and so are less polluting than regular hybrids.