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29-06-2020
Chemistry

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What are the four elements that make up most of the mass of the Earth's oceans?

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29-06-2020

Answer:

Iron, oxygen, silicon and magnesium.

Explanation:

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29-06-2020

Answer:

Nitrogen, oxygen, carbon dioxide, and hydrogen

Explanation:

Oxygen and hyrogen make the water of oceans possible. Meanwhile, carbon dioxide and nitrogen help organisms living in the oceans.

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