Final answer:
The main purpose of using energy from nuclear fuels is to generate electricity, but it can also be used to produce nuclear weapons.
Step-by-step explanation:
The main purpose of using energy from nuclear fuels is to generate electricity in power plants. Nuclear reactions, such as fission and fusion, produce a large amount of heat, which is used to boil water and generate steam.
This steam then turns a turbine, which is connected to a generator, producing electricity.
However, while nuclear energy has peaceful applications like generating electricity, it can also be used to produce nuclear weapons.
Weapons are created by using the energy released from nuclear reactions in an uncontrolled manner to cause a devastating explosion. This is why the proliferation of nuclear weapons is a significant challenge in international relations.
It's important to understand that nuclear power plants are designed and operated with safety measures in place to prevent the misuse of nuclear materials.
Stringent protocols and international agreements are in place to prevent the diversion of nuclear energy for weapons purposes.