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As far as we know Earth is the only place in the universe where there is life. (This does not mean there is not other life in the universe. It just means that we have not found it yet).

The question of how life got started on Earth is still unanswered. There are several scientific theories as to how this happened and many more non scientific ones.

Lightening acting on the primordial gases that were present on Earth when it formed would have made organic chemicals. Alternatively life could have started in the early oceans in environments such as hydrothermal vents from chemicals released from the core. One of these chemicals created possibly a primitive version of RNA was able to self replicate. This evolved through natural selection to cells then to more complex life.

Another theory says that life could have been brought to earth in a meteoroid, asteroid or comet. This of course begs the question how and where did life evolve in the first place?

Also you cant answer a question like this unless you mention the belief that a superior being created life on Earth. Again the question needs to be if "God" created life on Earth, who created "God"?

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15y ago

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