Why do nuclear power plants use fission rather than fusion to generate electric energy?
A. Fusion requires very high pressure and temperature.
B. A problem might lead to an explosion in a fusion reactor, but not
in a fission reactor.
C. The isotope used in fission is more common than the one used
in fusion.
D. Fission produces less radioactive waste than fusion does.

A. FUSION REQUIRES VERY HIGH PRESSURE AND TEMPERATURE

Explanation:

Fission is used in nuclear power reactors since it can be controlled, while fusion is not utilized to produce power since the reaction is not easily controlled and is expensive to create the needed conditions for a fusion reaction.

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

c

explanation: