Which describes an ice age? a. the time when woolly mammoths and other extinct animals walked earths surface. b. the periodic freezing of the oceans, occurring once every 100,000 years. c. cold periods in earths history during which glaciers covered much of the surface. d. a year of cooler than usual summer months.

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?