What substances primarily compose the icy bodies known as Kuiper Belt Objects?
Answer
Methane, ammonia, and water ice
Kuiper Belt Objects consist largely of frozen volatiles. Specifically, they are made up of methane, ammonia, and water ice. These materials have remained frozen for billions of years due to the extreme cold of the outer solar system, effectively preserving the chemical signatures of the original nebula that formed the Sun and the planets.

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