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How and when did the life appear on earth?
1.
How and when did the life appear on earth?
Answer»
Different kinds of gases including water vapour formed the atmosphere on earth.
Most of these gases were such that life as we know it today could not survive on it.
Because it did not have oxygen necessary for life to survive. It took a long time for the air to develop.
Then life appeared on oceans first.
It slowly evolved into diverse forms – plants, animals and human beings.
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