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.

Ex Input:
Question: Tony drives an SUV that contributes many greenhouse gases to the atmosphere. Evan rides a scooter that contributes few greenhouses gases to the atmosphere. Who likely contributes more to the Earth heating up? 
 Answer: Tony

Ex Output:
If there are more greenhouse gases in the atmosphere, more ultraviolet radiation will be trapped and the Earth will heat up.


Ex Input:
Question: If you were to launch a cannon which ball would fly faster if everything else were the same? 
 Answer: Lighter

Ex Output:
The mass of the particles: lighter particles will diffuse faster, because on average they move faster.


Ex Input:
Question: A family that is very small, compared to one that is enormous, will have allele differences that are 
 Answer: smaller

Ex Output:

The smaller a population is, the more allele frequencies may drift.