Nuclear fission is preffered to nuclear fusion in the generation of energy because
-
very high temperature are required for fusion
- the raw materials for fusion are easily obtained
- energy obtained from fusion is relatively small
- the by-products of fusion is very dangerous
The correct answer is: A
Explanation
Elevated temperatures are necessary to initiate fusion but not fission reactions because, In a fission reaction, the positively charged nucleus and neutrally charged neutrons clash to start the fission process. The procedure can be carried out at lower temperatures since it has a low activation barrier.
NOTE: fusion creates less radioactive material than fission.