What determines the life cycle of a star

Why are gamma rays not affected by a magnet as they pass over it? gamma rays are composed of only energy. gamma rays do not have enough mass to be affected. gamma rays do not have the right electrical charge to be affected. gamma rays move too fast for anything to affect their pathway.

Geothermal energy for industrial use is available almost anywhere. a.true b.false

Which of the following describes a situation where competition between producers exists