Question

Which phrase describes a risk associated with producing energy in a nuclear power plant?
a.depletion of atmospheric hydrogen (h2)
b.depletion of atmospheric carbon dioxide (co2)
c.production of wastes needing long-term storage
d.production of wastes that cool surrounding water supplies?

Answer 1

Energy production through nuclear means is thought to have many advantages, the main one being that it does not produce green house gases. 

However, one main disadvantage of nuclear energy is that it produces wastes that have very long half lives. This means that these wastes can remain radio active for long periods of time. 

This therefore means that when handling nuclear energy, consideration should be put out for storing of the radioactive  waste, which require long term storage.

The phrase that is then associated with producing energy in a nuclear power plant is " c.production of wastes needing long-term storage"

Answer 2

The wastes produced in nuclear power point are themselves radioactive.

These wastes are produced in large amounts.

Considering that they are radioactive, they take too long to decay and thus require long term storage which sometimes is a challenge.

If these wastes are not well dumped, we may have stray radiations which my be harmful to human beings.

From the information above, the answer is :

C

Producing of wastes needing long term storage.