Question

Which phrase describes a risk associated with producing energy in a nuclear power plant?

Answer 1

Answer:

The answer is C. Production of wastes needing long-term storage.

Explanation:

Nuclear energy is characterized by producing, in addition to a large amount of electrical energy, nuclear waste that must be housed in specialized tanks, since these have a high content of radioactive substances of very long age and of high toxicity, as is the case of plutonium 239. Highly active waste is considered to be isolated from the environment for a period of time from thousands to millions of years; For this reason nuclear waste has been accumulating, which can become an environmental risk in the future.

Answer 2

Correct Answer is Option C i.e. production of wastes needing long-term storage.

Reason: 
Most of the nuclear power plant uses nuclear fission reaction for generation of electricity. In a nuclear fission reaction, a radio-active nuclei (high atomic mass) is bombarded with fast moving projectile. This results in nuclear disintegration. The mass defect between product and reactant results in generation of energy. The daughter element generated during this event, may also be radio-active in nature. These materials have extremely high half-life. Hence, this waste product needs to be stored safely for long-time so as to minimize the risk of nuclear contamination.