Types of Energy

There are three main types of energy:those classified as non-renwble ;those that are said to be renwable;and nuclear energy,which uses such small quantities of raw meterial several of the renewable sources,if not used 'sustainably',can be depleated more quickly than they can be renewed.
Non-renewable Energy
To produce electricity form non-renemable resources,the material must first be ignitied .The fuel is placed in a secured area and set on fire.The heat thus generated turns water to stream ,which noves through pipes,to turn the blaes of a turbine.This converts magnetism electacity ,which we use in various appliances.
Non-renewable Energy sources:These consist of the mineral-based hydrocarbon fuels -coal,oil and natural gas-that were formed form ancient prehistoric forests.These are called 'fossil fuels'because they are formed agter the plant life is fossilized.At the present rate of extraction ,there is enough coal for a long time to come.oil and gas resources.However,are likely to be used up wiht in the next 50 years.When these fuels are burnt,they produce waste products that are released in to the atmosphere as gases such as carbon monoxiode -all causes of air pollution.These have to led to respiratory tract problems in an enormous numberof people all over the world,have also affected historic monuments like TajMahal,and killed many forests and lakes due to acid rain.Many of these gases also act like a greenhouse,letting sunlight in and trapping the heat inside.This is leading to global warming,a raise in global temparatur,increased drought in some areas,floods in other regions,the melting of icecaps,and a rise in sea levels ,which is slowly submering coastal belts all over the world.The warming of the seas also leads to the death of sensitive organisms like coral.