Part 1. Definition
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.
Part 2. Example
Question: The government of Canada is considering implementing less carbon taxes across the country. If these taxes were implemented, the amount of carbon dioxide emissions in the country would be expected to 
 Answer: rise
Answer: The carbon taxes encourage people to use less fossil fuel, which reduces carbon dioxide emissions.
Explanation: As mentioned in the input Question and Answer, the output statement constructs the explanation correctly. By decreasing the taxes, carbon dioxide emissions will rise, so the explanation is correct. 
Part 3. Exercise
Question: When we raise the temperature of water it becomes 
 Answer: less dense
Answer:
When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser.