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 Q]: Question: When a magnet is weak it has 
 Answer: less force
[EX A]: The more charged the objects are, the stronger the electrostatic force between them.

[EX Q]: Question: Greta yells across the canyon in the cool morning and again in the hot afternoon. The sound likely traveled _____ in the morning. 
 Answer: faster
[EX A]: For a given medium, sound has a slower speed at lower temperatures.

[EX Q]: Question: What happens to water when it absorbs less salt? 
 Answer: lower density
[EX A]:
Water becomes more dense when it is colder and when it has more salt.