Question

What makes up earths oceans?

Answer 1

The composition of Earth's oceansvaries from place to place. Since the oceans are mostly water, the elements hydrogen and oxygen are the most common. Sodium and chlorine are found in the salt inocean water. Earth's atmosphere ismade up of a combination of gases, including nitrogen, oxygen, and carbon dioxide.

Answer 2

hey here is your answer

The composition of Earth's oceansvaries from place to place. Since theoceans are mostly water, the elements hydrogen and oxygen are the most common. Sodium and chlorine are found in the salt in ocean water.Earth's atmosphere is made up of a combination of gases, including nitrogen, oxygen, and carbon dioxide.

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