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.

Question: Mike needed to get a dark picture . In order to get the darkest photo, Mike made the exposure 
 Answer: shorter
The longer the exposure, the more light that the telescope can gather to make the image.

Question: Decker pulls some taffy as far as he can. The elastic potential energy of the candy would 
 Answer: increase
The farther the object is stretched or compressed, the greater its elastic potential energy is.

Question: When animals are moving in the heat they are 
 Answer: faster

For a given medium, sound has a slower speed at lower temperatures.