Page 121 - Genius Kidz Prudence Learning Sc-8

! Natural resources are, those which are available to us naturally.
! Natural resources can be of two types - exhaustible and inexhaustible resources.

! Coal and petroleum are the examples of exhaustible or non - renewable resources.

EXERCISE
EXERCISE

1. Multiple choice questions.
(a) Wood is an example of :

(i) inexhaustible natural resources (ii) exhaustible natural resources
(iii) fuel (iv) both (i) and (iii)
(b) Which fuel is considered better :

(i) C.N.G (ii) petroleum (iii) coal (iv) wood
(c) Which one of the following is not a product of destructive distillation of coal :

(i) coke (ii) coal gas (iii) wood (iv) coal tar
(d) Anthracite is the coal of :
(i) Lowest rank (ii) 95% carbon content

(iii) Highest rank (iv) both (i) and (ii)
(e) Petrol is obtained by the process of :
(i) destructive distillation (ii) sedimentation

(iii) fractional distillation (iv) filtration

2. Fill in the blanks.
(a) Lignite is also called _________________ , _________________ .

(b) Residue is used for making of _________________ and _________________ .
(c) Petrol is obtained from _________________ .
(d) Heavy oil is used for _________________ .

3. Match the columns.

Column A Column B

(a) Peat (i) 65-80% coal
(b) Lignite (ii) 20-35% coal
(c) Bituminous (iii) 95% coal

(d) Anthracite (iv) Precursor of coal
(e) Petroleum (v) Black gold

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