Question

how is nuclear energy obtained and what are its uses

Answer 1

nuclear energy is obtained from uranium fuel. it is used for the generation of electricity 

Answer 2

Nuclear energy is obtained from the fission of Uranium Atoms. It is done in large scle in Nuclear Power Plants.
Uses of Nuclear Energy-
>Electricity Generation
>Nuclear Weapons
>Medicine Making

Bout be careful as harmful radiation is also produced that may even kill living organisms.