Page 87 - Science - 5

petroleum refinery.

From petroleum, we
get petrol, naphtha,

kerosene, diesel oil,

paraffin wax, tar etc.

Oil Rig Tar
In India, petroleum is found in Digboi, Ankaleshwar, Bombay High and LB

Charla.
w Petrol is used : as fuel in cars and motorcycles.

: in dry cleaning industry.

w Kerosene is used as a fuel in jet engines.
w Diesel oil is used as fuel in diesel engines.

w Paraffin wax is used : for making candles.

: for making waterproof cartons.
: for making wood polish.

w Tar is used for making roads and plastics.

Fact File
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Fact File
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Talc, a mineral found in talcum powder, is the softest mineral.

Natural GasNatural GasNatural Gas

Natural gas is found in the same rocks as coal and
petroleum. Gas was also formed from the half-

decayed remains of plants, animals and bacteria.
Gas is often found in small amounts only because it

can easily leak away through tiny spaces in rocks.
Natural gas does not need to be pumped out of the

ground. It comes out under its own pressure once
a shaft has been drilled down to it. Many oil wells

produce natural gas as a by product. Methane is
the chief component of natural gas.
Natural Gas

LIMITATIONS OF RESOURCES
The energy sources which were once used up and that cannot be filled up are

called non-renewable sources of energy, for example : coal, oil and natural gas.

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