Final answer:
True, lower mass stars live longer on the main sequence than higher mass stars.
Step-by-step explanation:
True, lower mass stars live longer on the main sequence than higher mass stars. The lifetime of a main-sequence star is determined by the amount of mass it contains and the rate at which it uses up its fuel. Massive stars have shorter lifetimes because they have more fuel to burn, but they also use it up faster due to their higher luminosity. Low-mass stars, on the other hand, have longer main-sequence lifetimes because they have less fuel and use it up more slowly.