What does the time a protostar takes to contract from a cool interstellar gas cloud to a main-sequence star mainly depend on?
A) luminosity
B) mass
C) magnetic field
D) location on the main sequence

Question

Quizplus · Accepted Answer

The time it takes for a protostar to contract from a cool interstellar gas cloud to a main-sequence star primarily depends on its mass. The more massive the protostar, the faster it contracts and begins nuclear fusion, transitioning into a main-sequence star.

What Does the Time a Protostar Takes to Contract from a Cool