Nuclear energy is another non-renewable source that has gained popularity in the last few years. With the depleting resources and high energy demand the world is looking towards the nuclear energy as its source that is created from the nucleus of an atom. Nuclear energy, as the term says, is released from the very nucleus of an atom. This happens as a result of its mass being converted to energy. Even though nuclear power is safer than burning electricity for fossil fuels, it is still a hazard to our health and the environment.