Supersaturated is the correct answer
O2 isn't necessary for rusting, but some source of oxygen is required. Rust is just another name for iron oxide, and without oxygen there can't be oxide.
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Davinia.
Answer:
b its radiant energy that heats up the earth.
Explanation:
The answer is NaCl
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Because the Earth's orbit around the sun is not in the same plane as the Moon's orbit around the Earth.
