Multiple Choice
Why did the temperature start to rise at the center of the solar nebula?
A) Supernova explosions were stirring up the material there and causing turbulence.
B) The nebula was contracting, which increased collisions between atoms moving in it.
C) Fusion reactions were beginning in the core, releasing tremendous amounts of heat.
D) Massive stars nearby were heating the nebula with their ultraviolet radiation.
Correct Answer:
Verified
Correct Answer:
Verified
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