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: When humans grow trees what happens to the population of the animals in the forest 
 Answer: Increase
Example Output: The forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.

Example Input: Question: If a device were to become less efficient, it would produce _____ usable energy. 
 Answer: less
Example Output: The more efficient a device is, the greater the percentage of usable energy it produces.

Example Input: Question: The parallax levels in a rifle scope wind up changing as we get farther from the target, in general they 
 Answer: decrease
Example Output:
The closer your finger is to your eyes, the greater the position changes because of parallax.