Final answer:
Massive stars have shorter lifetimes compared to low-mass stars due to higher core temperatures and faster consumption of fuel.
Step-by-step explanation:
In general, massive stars have shorter lifetimes compared to low-mass stars. This is because the rate of fusion, which produces energy in stars, depends strongly on the temperature in the star's core, and temperature is directly related to the star's mass. Higher mass stars have higher core temperatures, which lead to faster consumption of fuel. Therefore, even though massive stars have more hydrogen to fuse into helium, they burn through it more quickly, resulting in a shorter lifespan.