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Explain why the emergence of alga was required before animals could exist on the planet
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Explain why the emergence of alga was required before animals could exist on the planet
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Jul 14, 2018
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Explain why the emergence of alga was required before animals could exist on the planet
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Because the sun was a deadly laser. The ozone layer didn't exist yet, so the sun produced too much radiation for life above the water to possible.
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Jul 19, 2018
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