Acampfire is an example of

a. a fusion reaction.

b. an exothermic reaction.

c. a spontaneous reaction.

d. an endothermic reaction.

i just learnt this recently but i need to look through my notes again

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.