Environmental Science A nuclear chain reaction refers to A) the release of energy in a nuclear explosion. B) the fusion of two smaller atoms to form...

Environmental ScienceA nuclear chain reaction refers toA) the release of energy in a nuclear explosion.B) the fusion of two smaller atoms to form a larger one.C) the splitting of one atom causing the splitting of another.D) the splitting of one atom causing the fusion of others.E) the release of neutrons in atomic decay.