Question

Why do massive stars have shorter lifespans than average stars?
A. They are excited to get through their life cycles faster
B. They have less steps in their life cycles
C. They burn their fuel faster
D. They have less fuel to burn

Answer 1

Hint: In order to get to the answer we will consider all factor which affects the massive stars and the smaller after drawing the factors we will differentiate them and will come to the answer that what factor is the reason for massive stars having the shorter lifespans than the average star.

Complete answer:
All the stars are between the different force which make them survive in the space so it right to say that star is between the continuous battle of force these forces are the gravitational force which tends to contract the planet and tries to vanish it on the other and pressure that is produced from the heat that develops in the core tries to oppose the contractions produced by the gravitational force.

The heavier the star is more gravitational force tries to contract it so in order to repose that force more the internal core pressure is required which means the core should be more hotter and when the core become hotter the rate of nuclear reactions increases which therefore results in increasing the burning of fuels therefore as more fuel burns star’s life get shorter.

Hence the correct answer is C.

Note: Many of the students will make the assumption that the mightier the star more the time of survival but it is opposite as Jupiter like planet may survive only the few million as it is using it’s fuels faster while the red dwarf star may live longer than the mighty Jupiter