Question

Which process is carried out at higher temperature - nuclear fission or nuclear fusion?

Answer 1

there is high temperature for nuclear fusion approx 100 million Kelvin

Answer 2

nuclear fission--when one havi element like urenium break down in two elements with lot of heat and energy by applying electron on it..
ex. Uranium---- bralium +krepton+heat and energy
nuclear fusion--when two or more atoms fuses with each other to produce a new element with a lot of heat and energy