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Which of Earth’s spheres is composed of a mixture of gases?

Sagot :

mbonds111

Answer:

Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen and 21% oxygen 0.97% argon and carbon dioxide 0.04% trace amounts of other gases, and water vapor. This mixture of gases is commonly known as air.  Explanation:

beson004

Answer:

the earth's atmosphere

Explanation:

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