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Natural Resources

1Fill in the ...

Question

(1)
Fill in the blanks.

(a) The slow process of conversion of dead vegetation into coal is called.
(2)
Fill in the blanks.
(b) Coal and petroleum are formed from the dead remains of organisms and are known as .
(3)
Fill in the blanks.
(c) The black thick liquid with smell is known as coal tar.
(4)
Fill in the blanks.
(d) During the processing of coal to get coke, coal tar and are also obtained.
(5)
Fill in the blanks.
(e) The process of separating the various constituents of petroleum is known as .
(6)
Fill in the blanks.
(f) Excessive burning of fossil fuels is a major cause of .

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Solution

(1)
(a) The slow process of conversion of dead vegetation into coal is called carbonisation.

(2)
(b) Coal and petroleum are formed from the dead remains of organisms and are known as fossil fuels.

(3)
(c) The black thick liquid with unpleasant smell is known as coal tar.

(4)
(d) During the processing of coal to get coke, coal tar and coal gas are also obtained.

(5)
(e) The process of separating the various constituents of petroleum is known as refining.

(6)
(f) Excessive burning of fossil fuels is a major cause of air pollution.

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Similar questions

Q. Question 18
(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 ___.
(c) The black thick liquid with ___ smell is known as coal tar
(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 ___.

Q. Question 18
(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 ___.
(c) The black thick liquid with ___ smell is known as coal tar
(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 ___.

Q. (1)Fill in the blanks in the following sentences.

(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.

(3)
Fill in the blanks in the following sentences.

(c) Coal tar is a black, thick ______ with an ______ smell.

(4)
Fill in the blanks in the following sentences.

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

(5)
Fill in the blanks in the following sentences.

(e) Forests and coal are ______ natural resources.

Fill in the following blanks with suitable words :

(a) Fossil fuels are ___ , ___ and ___ .

(b) Coal contains mainly ___ .

(c) The slow process of conversion of dead vegetation into coal is callled ___ .

(d) The process of separation of different constituents from petroleum is called ___ .

(e) The least polluting fuel for vehicles is ___ .

(f) The burning of fossil fuels causes air ___ and also leads to global ___ .

Q. 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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Standard VIII Chemistry

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