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.

Input: Consider Input: Question: Dan falls from a single stair one day, then the next day falls down three stairs at once. After falling down one stair, compared to three, Dan will experience
Answer: less friction

Output: Heavier objects press together with greater force, and this causes greater friction between them.

Input: Consider Input: Question: Mona lives in a nation that uses a lot of fossil fuels. What would happen to her countries levels of air pollution if they were to decrease their usage?
Answer: decrease

Output: Because richer nations use more fossil fuels, they also cause more air pollution and global warming than poorer nations do.

Input: Consider Input: Question: Given two equal measures of water by volume, which would be lighter
Answer: distilled water?
Output: Water becomes more dense when it is colder and when it has more salt.