Which of the following items are related to nuclear fusion reactions? Check all that apply

Question

A. Requires very high temperatures to start the reaction
B. Occurs in the sun
C. Involved in chain reaction
D. No radioactive waste is produced
E. Used in nuclear power plants

Answer 1

The items related to nuclear fusion reactions are:

A. Requires very high temperatures to start the reaction - True. Fusion requires extremely high temperatures to overcome the repulsive forces between atomic nuclei.

B. Occurs in the sun - True. The sun primarily generates energy through nuclear fusion, converting hydrogen into helium.

C. Involved in chain reaction - False. Chain reactions are characteristic of nuclear fission, not fusion.

D. No radioactive waste is produced - Generally True. Fusion produces less long-lived radioactive waste compared to fission, but some neutron activation can produce some radioactive materials.

E. Used in nuclear power plants - False. Currently, most nuclear power plants use nuclear fission, not fusion, to generate energy.

So the correct answers are A, B, and D.