The main chemical building blocks of life, carbon, hydrogen, oxygen, and nitrogen were formed
A) inside interstellar gas clouds during star formation
B) in the center of the Earth and then ejected onto the surface via volcanism
C) in the nuclear burning cores of stars and then ejected into space when they died
D) in the Big Bang that created the universe

Question

Quizplus · Accepted Answer

The main chemical building blocks of life were formed in the nuclear burning cores of stars through nuclear fusion processes and were then ejected into space when these stars died, particularly in supernova explosions.

The Main Chemical Building Blocks of Life, Carbon, Hydrogen, Oxygen