Make notes from an imaginary passage vegetable oils.
Answers
Answer: there are three main groups of oil-animal, vegetable and mineral.
Great quantities of animal oil come from whales, those enormous
creatures of the sea which are the sea's largest remaining animals in
the world. When the whale is killed, the blubber, a thick covering of
fat is stripped off and boiled down. It produces a great quantity of oil
which can be made into food for human consumption. The rivers of
the cod and the halibut, two kinds of fish, yield nourishing oil.
Vegetable oil has been known from very old times. No household
can get on without it, for it is used in cooking. Perfumes may be made
from the oils of certain flowers.
To the ordinary man, one kind of oil may be as important as
another, but when the politician or the engineer refers to oil, he almost
means mineral oil, the oil that drives tanks, airplanes, warships, motor
cars and diesel locomotives. This kind of oil, comes out of the earth.
Because it burns well, it is used as fuel, and in some ways it is superior
to coal.
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