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Answers
Explanation:
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a ) Natural
b ) fossil
c ) carbon dioxide
d ) coal gas ( mixture of hydrogen , methane , carbon monoxide )
e ) petrochemicals
Answer the following questions
Answer 1 : Example of exhaustible substances are petroleum , natural gas , coal
Answer 2 : Example of inexhaustible substances are wind , sun , biomass
Answer 3 : Carbon Dioxide
Answer 4 : Diamond
Answer 5 : It is used as domestic as well as industrial fuel in stoves and furnaces
It is used for extraction of metals
it can be used to make fuel gases like water gas ( CO+H2)
Answer 6 : Bitumen
Answer 7 : petrochemicals are the chemical products obtained from petroleum by refining
Answer 8 : due to its great commercial importance petroleum has often been called liquid gold or black gold
Answer 9 : Natural Sources - natural energy sources are those which are made available to us by Nature solar energy , wind energy , hydro energy are some examples of Natural sources of energy
Answer 10 : Fossil fuels are so called because they are formed over a period of millions of years by the action of heat and pressure on the remains of death main fossil fuels are petroleum natural gas and coal