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: Yolanda moved to Florida where it is at sea level. The atmosphere here is considered 
 Answer: dense
[EX A]: The density of the atmosphere decreases with an increase in the height above sea level (altitude).

[EX Q]: Question: Reid analyzes particle speed. The heaviest particle he sees likely diffuses _____ than the lightest particle. 
 Answer: slower
[EX A]: The mass of the particles: lighter particles will diffuse faster, because on average they move faster.

[EX Q]: Question: When we get warm we become 
 Answer: faster
[EX A]:
If the gas is cooled, the particles will move more slowly, because they will have less energy.