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13 questions
(a) Fossil fuels are ____________, ____________, and ____________ .
Fossil fuels , Coal, Petroleum
Air , Coal, Petroleum, and natural gas
Coal, Petroleum, and natural gas
Least polluting fuel for a vehicle is ______________ .
Compressed Natural Gas.
(CNG)
Coal
Tick True/False against the following statements.
(a) Fossil fuels can be made in the laboratory.
CNG is more polluting fuel than petrol.
Coke is the almost pure form of carbon.
Coal tar is a mixture of various substances.
Kerosene is not a fossil fuel. - True or False
Name some renewable sources of energy.
Water
Coal
Name the elements present in coal.
Carbon, oxygen and sulphur.
Carbon ,Hydrogen , Nitrogen
Minerals are
Natural resources
Inexhaustible natural resources
Exhaustible natural resources
All of these
Petroleum is mainly a mixture of which one of the following class
Carbohydrates
Carbogens
Hydrocarbons
Alcohols
Which one is not a coal Product .
Coal Tar
Coal Gas
Lime
Mango
conversion of dead vegetation into coal is called?
Carbonisation
Distillation
Coal Gas
Natural Gas
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