Question

How life began on earth?​

Answer 1

Answer:

ATLANTA—A cataclysm may have jump-started life on Earth. A new scenario suggests that some 4.47 billion years ago—a mere 60 million years after Earth took shape and 40 million years after the moon formed—a moon-size object sideswiped Earth and exploded into an orbiting cloud of molten iron and other debris.

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Answer 2

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After things cooled down, simple organic

molecules began to form under the blanket of

hydrogen. Those molecules, some scientists

think, eventually linked up to form RNA, a

molecular player long credited as essential

for life's dawn. In short, the stage for life's

emergence was set almost as soon as our planet

was born.