Scientists think it is very unlikely that complex and large forms of life could evolve on planets that orbit stars that are much more massive than the sun. why?

Their lifetime is too short for life to begin or evolve.

Explanation:

A massive star is considered to have at least 8 times the mass of our sun.

A star this big, burns its main-sequence stage much faster than others, as it burns many times more fuel. The scientist community believes that most massive stars have a lifetime of around 2.5 or 3.2 billion years, which would not be enough for life to flourish in a planet orbiting the star.

Plus, massive stars die in the form of supernovae, causing life to be permanently unsustainable on the surrounding planets.

the correct answer would be true friction causes the faults to slip or collide