What was the result of collisions between the early earth and other, smaller protoplanets?
a. matter within the protoplanets was absorbed and became the earth’s core.
b. matter within the protoplanets formed the earth’s early atmosphere.
c. the trajectory of their motion knocked the earth into a different orbit.
d. the energy of their motion heated the earth.
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What was the result of collisions between the early earth and other, smaller protoplanets?
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