Question

what happens if all the water of the earth doubled?

Answer 1

Answer:

no one be alive it destroys everything

Answer 2

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71% of the world is already covered with water. If the rest of the Earth were covered with water, then the entire planet surface would become one massive saltwater ocean and virtually every species that lives on land or in freshwater(e.g., streams, rivers, and lakes) would go extinct (die).