Science, asked by Anonymous, 1 year ago

What is the part of a comet that surrounds the nucleus?

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Answered by manica

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The coma is a halo of evaporated gas (water vapor, ammonia, carbon dioxide) and dust that surrounds the nucleus. ... The coma and nucleus together form the head of the comet. Surrounding the coma is an invisible layer of hydrogen called the hydrogen envelope; the hydrogen may come from water molecules.

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