In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Example Input: Question: What is a byproduct from the combustion of fossil fuels like coal and gasoline? Answer: nitrogen dioxide
Example Output: Nitrogen dioxide is a byproduct from the combustion of fossil fuels like coal and gasoline.

Example Input: Question: Which of the following processes is responsible for changing liquid water into water vapor? Answer: evaporation
Example Output: Evaporation is responsible for changing liquid water into water vapor.

Example Input: Question: What is the most prevalent gas in the atmosphere, but not the most vital for life? Answer: nitrogen
Example Output:
Nitrogen is the most prevalent gas in the atmosphere, but not the most vital for life.