Natural selection is defined as a. the changes that occur in a population that do not affect survival. b. the changes in the characteristics within a population that lead to survival c. the changes that occur in an organism over it's lifespan. d. the process by which humans select the most desirable organisms in population

This is what i found “nuclear fuel is material used in nuclear power stations to produce heat to power turbines. heat is created when nuclear fuel undergoes nuclear fission. most nuclear fuels contain heavy fissile actinide elements that are capable of undergoing and sustaining nuclear fission.” i hope this you for what your looking for. can you plz mark me brainliest?