Question

question 2
1 pts
how hot does a young protostars interior need to be, to start undergoing fusion?
1 million degrees
10,000 degrees
100,000 degrees
10 million degrees
1000 degrees

Explanation:

For nuclear fusion to start in a protostar, the temperature must be high enough to overcome the electrostatic repulsion between positively - charged hydrogen nuclei. At 10 million degrees, the kinetic energy of the nuclei is sufficient for this to occur. 1 million degrees is too low as the nuclei do not have enough energy to fuse. 10,000 degrees and 100,000 degrees are temperatures more typical of cooler stellar atmospheres or interstellar gas. 1000 degrees is extremely low and not relevant for stellar processes.

Answer:

10 million degrees