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 you defocus the sun's rays with a lens they are 
 Answer: weaker
Example Output: The more focused the Suns rays are, the more energy an area receives and the warmer it is.

Example Input: Question: When a rabbit farmer begins a farm he starts with many rabbits. If the rabbits are not cared for and fed does the population 
 Answer: decrease
Example Output: With exponential growth, the population starts out growing slowly. As population size increases, the growth rate also increases.

Example Input: Question: Billionaire Joey McMoneystuffs added 3 new jets to his already large fleet of personal aircraft. One day, he decided to have them race each other, burning excess fuel and adding greenhouse gases to the atmosphere. When the resulting ultraviolet radiation becomes trapped, the Earth's heat index will 
 Answer: increase
Example Output:
If there are more greenhouse gases in the atmosphere, more ultraviolet radiation will be trapped and the Earth will heat up.