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: 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: Dell added lots of silica to her magma project. The magma will be _____ in color. 
 Answer: lighter

A: Magmas that produce lighter colored minerals are higher in silica.
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Q: Question: Fred found a longitudinal wave. The particles are getting further apart. The amplitude is 
 Answer: decreasing

A:
The closer together the particles in a longitudinal wave are, the greater the amplitude.
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