Multiple Choice
Accretion is the process by which:
A) elements are transformed into heavier elements by nuclear reactions.
B) massive protoplanetary cores pull gas onto themselves to create giant planets.
C) clouds of interstellar gas and dust contract to form protostars.
D) dust grains and ice crystals coalesce to form planetesimals.
Correct Answer:

Verified
Correct Answer:
Verified
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