Question

Wwhat are the hazards of nuclear fission or fusion reaction

Answer 1

'Ello mate,

   'ere it is for you

      Over summary,

           Fission and fusion are two physical processes that produce massive amounts of energy from atoms.

They yield millions of times more energy than other sources through nuclear reactions.

Fission

Fission occurs when a neutron slams into a larger atom, forcing it to excite and spilt into two smaller atoms—also known as fission products. Additional neutrons are also released that can initiate a chain reaction.  When each atom splits, a tremendous amount of energy is released.  Uranium and plutonium are most commonly used for fission reactions in nuclear power reactors because they are easy to initiate and control.  The energy released by fission in these reactors heats water into steam. The steam is used to spin a turbine to produce carbon-free electricity.

Fusion

Fusion occurs when two atoms slam together to form a heavier atom, like when two hydrogen atoms fuse to form one helium atom.  This is the same process that powers the sun and creates huge amounts of energy—several times greater than fission. It also doesn’t produce highly radioactive fission products.  Fusion reactions are being studied by scientists, but are difficult to sustain for long periods of time because of the tremendous amount of pressure and temperature needed to join the nuclei together.

                                                             -Hope This Helps Mate-

Answer 2

Heya Mate.................................

Here is your answer.............................

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Nuclear Fission:-

==> Fission is the splitting of a large atom into two or more smaller ones.

==> Fission reaction does not normally occur in nature.

==> Critical mass of the substance and high-speed neutrons are required.

Nuclear Fusion:-

==> Fusion is the fusing of two or more lighter atoms into a larger one.

==> Fusion occurs in stars, such as the sun.

==> High density, high temperature environment is required.

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Thanks.......................

@Rajasthani............................