Question 16
Fill in the blanks in the following sentences.
(a) Coal is one of the _ used to cook food.
(b) When heated in air, coal burns and produces mainly _ gas
(c) Coal tar is a black, thick _ with an _ smell.
(d) Petroleum, _ and _ are fossil fuels.
(e) Forests and coal are ___ natural resources

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Solution

(a) Coal is one of the fuels used to cook food.
(b) When heated in air, coal burns and produces mainly Carbon dioxide gas.
(c) Coal tar is a black, thick liquid with an unpleasant smell.
(d) Petroleum, coal and natural gas are fossil fuels.
(e) Forests and coal are exhaustible natural resources.

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Similar questions

(a) Coal is one of the ______ used to cook food.

(2)
Fill in the blanks in the following sentences.

(b) When heated in air, coal burns and produces mainly ______ gas.

(d) Petroleum, ______ and ______ are fossil fuels.

(e) Forests and coal are ______ natural resources.

Fill in the blanks.

(a) The slow process of conversion of dead vegetation into coal is called__________.

(b) Coal and petroleum are formed from the dead remains of organisms and are known as __________.

(d) During the processing of coal to get coke, coal tar and __________ are also obtained.

(e) The process of separating the various constituents of petroleum is known as __________.

(f) Excessive burning of fossil fuels is a major cause of __________.

Which one of the following is an inexhaustible natural resource ?

(a) coal

(b) petroleum

(d) forests

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