Answer: The water in the earth is older than earth itself.The water inside earth came out as steam from volcanic vents and the clouds rained down water..Comets also contain lot of water ice.Early period of solar system large amount of comets and asteroids hit the earth They also brought lot of water.
Explanation:
Answer and Explanation:
Why does enzyme activity plateau as substrate concentration increases?
Simple. The enzyme is saturated, now all available enzyme molecules are busy processing substrates.
Earth's magnetic field protects <span>the </span>planet<span> from solar radiation.</span>
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