English Special Question Bank Worksheet - Class Ix Page 12
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48(i)
two adjectives.
(ii)
antonym of ‘trivial’
Passage – 3
The word ‘petroleum’ comes from the Latin phrase petra oleum. The
word petra means ‘rock’ and oleum means ‘oil’. Thus petroleum’ means
mineral oil that forms underground and is obtained from wells sunk into the
ground.
Petroleum and its products are of great importance to modern life.
These products include gasoline (petrol), kerosene (paraffin), diesel oil, fuel
oil, lubricants, bitumen, and wax. No industrialist can do without them.
Petrol is used in motor cars. Kerosene is used in oil lamps. Diesel oil is used
in diesel engines for buses, lorries and ships. Fuel oil is burned to make
steam in the boilers of steam ships and in furnaces of many kinds, such as
used in the manufacture of steel, glass and pottery. Lubricants are the oils
and greases needed to make machinery of any kind run smoothly and easily.
Bitumen is used in asphalt (a black sticky substance used for making roads).
Petroleum was probably formed from dead plant and animal life of the
seas. The dead remains decayed on the seabed until only fatty and oily
substances were left. These substances became buried under mud and as
time went on, the mud was squeezed into a layer of rock, while the oily
substances were changed into petroleum and gas.
The oil seldom remained in the rock where it was formed. Sometimes
it traveled many miles through pores in the rock until it met a hard, non-
porous rock which it could not get through. Here, trapped beneath a cap of
non-porous rock, the oil can be found contained in the lower surface, like
water in a sponge. Only drilling can prove that oil exists in a particular
place.
Questions :
1)
What does the ward ‘petroleum’ mean? How was it formed?
2)
What are the uses of petroleum and its products?
3)
Where is petroleum found? How can we come to know that oil exists
in a particular place?
4)
Find out from the passage;
(i)
a gerund
(ii)
an adverb
12
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