Many scientists believe the Earth was dry when it first formed, and that the building blocks for life on our planet--carbon, nitrogen and water--appeared only later as a result of collisions with other objects in our solar system that had those elements.
Many scientists believe the Earth was dry when it first formed, and that the building blocks for life on our planet--carbon, nitrogen and water--appeared only later as a result of collisions with other objects in our solar system that had those elements.
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