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several miles in diameter

originate beyond the outer planets
thought to have struck early Earth
bodies of ice, stone, and organic compounds
may have created major changes to Earth's early climate

The list above describes ____________ that are thought to have struck Earth billions of years ago and helped to modify the climate, atmosphere, and oceans of this planet.
Responses
A cometscomets
B asteroidsasteroids
C meteorsmeteors
D stardust

1 answer

A. Comets
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