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.

Q: Question: Reid analyzes particle speed. The heaviest particle he sees likely diffuses _____ than the lightest particle. 
 Answer: slower

A: The mass of the particles: lighter particles will diffuse faster, because on average they move faster.
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Q: Question: A population of squirrels in a local forest had less food available to them this spring than they did last spring. During which spring will more squirrels leave the area to live somewhere else? 
 Answer: this spring

A: Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration.
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Q: Question: Scott rolls two balls together until they strike each other. When Scott rolls the balls softly, they barely move apart, and when Scott thrusts the balls at one another, they are apart a 
 Answer: great distance

A:
When two skateboarders push against each other, it causes them to move apart. The harder they push together, the farther apart they move.
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