Which phrase describes a nuclear chain reaction?(1 point)

Question

Responses

a reaction in which particles spontaneously emit radiation
a reaction in which particles spontaneously emit radiation

a series of reactions in which particles from one reaction trigger the next reaction
a series of reactions in which particles from one reaction trigger the next reaction

a type of reaction which only takes place in the sun and other stars
a type of reaction which only takes place in the sun and other stars

a reaction in which small nuclei combine into a larger nucleus

Answer 1

a series of reactions in which particles from one reaction trigger the next reaction