What is Nuclear Fission?
-When a large fissile atomic nucleus such as uranium-235 or plutonium-239 absorbs a neutron, it may undergo nuclear fission.
What is Nuclear Energy?
-Nuclear energy uses a special fuel made from a rare metal called uranium.-Nuclear energy produces heat, which is used to generate electricity.
-It can also be used to power big ships and submarines.How a nuclear power station work?
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-A small amount of nuclear fuel produces a lot of electricity.
-Nuclear fuel is readily available and is easily stored.
-Nuclear power stations do not produce any carbon dioxide.Disadvantages
-Nuclear power stations may be unpopular with people who are concerned about how safe they are.
-Nuclear energy is not renewable.
-Nuclear energy produces dangerous radioactive waste which must be buried in sealed containers for a long time.
-Nuclear power stations cannot be switched on and off easily.
Why Earth Getting hotter?
**Greenhouse Effect**
-The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions.
-A greenhouse gas (GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range.
-The primary greenhouse gases in the Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone.
Renewable and Non-Renewable Energy (Exercise)
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