Question 17
The underlined words in the following sentences have been jumbled up. Write them in their correct form.
(a) Locais obtained from mines.
(b) Umpetlore is a fossil fuel.
(c) Rineryfe is a place where various fractions of petroleum are separated
(d) Keenrose is a fuel used in jet crafts
(e) Nutsgilh is an example of inexhaustible natural resources

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Solution

(a) Coal is obtained from mines.
(b) Petroleum is a fossil fuel.
(c) Refinery is a place where various fractions of petroleum are separated.
(d) Kerosene is a fuel used in jet crafts.
(e) Sunlight is an example of inexhaustible natural resources.

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Q. Question 17
The underlined words in the following sentences have been jumbled up. Write them in their correct form.
(a) Locais obtained from mines.
(b) Umpetlore is a fossil fuel.
(c) Rineryfe is a place where various fractions of petroleum are separated
(d) Keenrose is a fuel used in jet crafts
(e) Nutsgilh is an example of inexhaustible natural resources

(1)
The underlined words in the following sentences have been jumbled up. Write them in their correct form.

(a) Loca is obtained from mines.

(2)
The underlined words in the following sentences have been jumbled up. Write them in their correct form.

(b) Umpetlore is a fossil fuel.

(3)
The underlined words in the following sentences have been jumbled up. Write them in their correct form.

(c) Rineryfe is a place where various fractions of petroleum are separated

(4)
The underlined words in the following sentences have been jumbled up. Write them in their correct form.

(d) Keenrose is a fuel used in jet crafts.

(5)
The underlined words in the following sentences have been jumbled up. Write them in their correct form.

(e) Nutsgilh is an example of inexhaustible natural resources.

Q. Question 17
Some words (underlined) in the following sentences are jumbled up. Write them in their correct form.
(a) Seldie is a combustible substance.
(b) Slags is a non-combustible material.
(c) Chittsmack does not burn by itself.
(d) Some substances on combustion produce thea and mafel.
(e) The amount of heat energy produced on complete combustion of 1 kg of a fuel is called its ficalroic value.

Q. Some words (underlined) in the following sentences are jumbled up. Write them in their correct form.
(a) Seldie is a combustible substance.
(b) Slags is a non-combustible material.
(c) Chittsmack does not burn by itself.
(d) Some substances on combustion produce thea and mafel.

(e) The amount of heat energy produced on complete combustion of 1 kg of a fuel is called its ficalroic value.

Q. Choose the correct option regarding the statements given below:
1. Coal and petroleum are fossil fuels.
2. Fossil fuels are inexhaustible resources.
3. We obtain petrol from petrochemicals.
4. Fossil fuels are present in limited quantity.

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(a) Coal is obtained from mines. (b) Petroleum is a fossil fuel. (c) Refinery is a place where various fractions of petroleum are separated. (d) Kerosene is a fuel used in jet crafts. (e) Sunlight is an example of inexhaustible natural resources.

(a) Coal is obtained from mines.
(b) Petroleum is a fossil fuel.
(c) Refinery is a place where various fractions of petroleum are separated.
(d) Kerosene is a fuel used in jet crafts.
(e) Sunlight is an example of inexhaustible natural resources.