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

question:
Question: The oxygen levels in water wind up going up when the temperature
Answer: decreases
answer:
Warm water cant hold as much dissolved oxygen as cool water, so an increase in the temperature of water decreases the amount of oxygen it contains.

question:
Question: If Mona lives in a city that begins producing a greater amount of pollutants, what happens to the air quality in that city?
Answer: decreases
answer:
More pollutants mean poorer air quality.