1.

What are the disadvantages of nuclear fuel over fossil fuel.?

Answer»

Nuclear fuels

The main nuclear fuels are uranium and plutonium. These areradioactivemetals. Nuclear fuels are not burnt to release energy. Instead, nuclear fission reactions (where the nuclei in atoms are split) in the fuels release heat energy.The rest of the process of generating electricity is then identical to the process using fossil fuels. The heat energy is used to boil water. Thekinetic energyin the expanding steam spins turbines, which then drive generators to produce electricity.

Advantages

Unlike fossil fuels, nuclear fuels do not produce carbon dioxide or sulfur dioxide.

Disadvantages

Fossil fuels, nuclear fuels arenon-renewable energy resources.

If there is an accident, large amounts of radioactive material could be released into the environment.

In addition, nuclear waste remains radioactive and ishazardous to health for thousands of years. It must be stored safely.



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