Why do stars change very LITTLE while they are in the main sequence stage?

The energy needs of a human population are not affected by

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays