Question

The major problem in harnessing nuclear energy is how to

• A. Split nuclei
• B. Sustain the reaction
• C. Dispose of spent fuel safely
• D. Convert nuclear energy into electrical energy

Answer 1

The correct option is C

Dispose of spent fuel safely

Nuclear energy:

1. Nuclear energy is obtained by performing nuclear fission reactions in an enclosed container through a controlled chain reaction.
2. These reactions produce a lot of energy which is converted into electrical energy.

Explanation for correct option:

The correct answer is option (C).

1. Nuclear reactions result in nuclear waste which is very toxic and radioactive in nature.
2. This nuclear waste is very harmful to the environment, Any accident at the nuclear plant makes people vacant in a certain proximity.
3. So, dealing with nuclear waste is the major problem in harvesting nuclear energy.

Explanation for incorrect options:

The other three remaining options are part of the process of harvesting nuclear energy, So they are not considered major problems.

Option (A) Split nuclei: Starting step of the process.

Option (B) Sustain the reaction: We need to control the chain reaction so that the energy coming out of it doesn't get out of hands.

Option (D) Convert nuclear energy into electrical energy: The final step is to convert nuclear energy into electrical energy.

Thus, option (C) is correct.