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.

Example Input: Question: If Mona owns a car and she decides to switch to a cleaner burning fuel, will she create more or less pollution? 
 Answer: less pollution
Example Output: The advantage to biofuels is that they burn more cleanly than fossil fuels. As a result, they create less pollution and less carbon dioxide.

Example Input: Question: Wendy is 30 years old while Jefferson is 60 years old. Who is more susceptible to disease? 
 Answer: Jefferson
Example Output: Many diseases become more common as people grow older.

Example Input: Question: Fred started a fire on the beach. The air distant from the fire likely 
 Answer: falls
Example Output:
Warm air is less dense than cool air, so it rises higher in the troposphere.