Multiple Choice
What was the material from which the solar system formed?
A) nebula made mostly of heavy elements but enriched in hydrogen and helium from supernova explosions
B) debris from the explosion of a massive star
C) nebula made entirely of hydrogen and helium gas
D) nebula made mostly of hydrogen and helium gas but enriched in heavier elements from planetary nebulae and supernova explosions
Correct Answer:

Verified
Correct Answer:
Verified
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