Explanation:
Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).
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C) heat from the sun
Why?
Because the sun’s heat makes the water turn to steam—or what we call “water vapor.”
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Compare the initial mass to the final mass.