By Sunil Bhardwaj

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and the last topic is energy resources so what is energy as per the physics the definition of energy is the capacity crew to do the work the capacity to do work is known as energy all living creatures on the earth either it is a plant or animals or microbe they need energy to perform their vital functions the earth is a vast storehouse of energy the fossil fuel beneath the surface the wind and water on the surface the plant growing on it and the sunlight falling upon it these are all sources of energy our basic our energy needs are mainly for industry where we are using almost % of our total energy then comes the domestic uses where we are using % of the energy and and then % for the transportation and % for the agricultural uses energy is divided into two part one is renewable energy sources and another is non-renewable energy sources non-renewable energy sources are available in limited amount and a long period of time so because of indiscriminate use they are likely to be exhausted in the near future for example coal mineral oil natural gas nuclear power etc well renewable energy sources are are the energy or flow-flow source they rely on natural energy flows and sources in the environment and thus have the potential to being continuously replenished so can be used indefinitely this includes like firewood petrol plants animal dung solar energy wind energy geothermal energy tidal energy etc so let's talk about the fossil fuel fossil fuels examples are coal petroleum and natural gas they are the remains of the organisms that live to million years ago finite they are finite in quantity not renewable and also they are formed inside the Earth's crust through heat and compression of organic matter buried underneath ok so coal coal is also known as anthracite bituminous and lignite these are some of the different names of the coal depending upon the composition of the coals it is used for domestic cooking industrial heating and for production of electricity in thermal power plants where we burn coal and produce electricity about % of the world coals found in India and where it is found mainly Jharkhand Odisha West Bengal Madhu Pradesh Andhra Pradesh and Maharashtra other mean coal states of India who we are having huge coal deposit left for or almost years mining and use of coal is very harmful to the environment it produces air pollution it emits carbon dioxide and it causes respiratory diseases secondly petroleum petroleum includes petrol diesel kerosene and etc whatever oil we are getting from the from the reservoir it is only the crude oil and we after distillation we get different types of oils like petrol diesel kerosene etc means or main reservoirs are available in USA Russia and West Asian regions there is one organization called OPEC Organization of Petroleum Exporting Countries they are having almost % of the reservoirs and these are situated in middle-east alone so the Arabia is having almost percent of the oil reservoir and about . to two point one trillion barrels mostly in the Middle East current word demand is about billion barrels per year is rising rapidly currently new discoveries among current new discoveries amount to just billion barrels per year and this is declining worse world all likely to beak before Middle East will peak later prices will then rocket and what about the natural gas natural gas is a mixture of methane ethane propane and butane it is supplied in the form of LPG or CNG a full form of LPG is liquefied petroleum gas while for CNG is compressed natural gas Russia and Kazakhstan are having almost % of gas reservoirs LPG consists of mainly propane and butane it is having low cost low pollution but sometimes it needs by plane or heavy cylinders you