Questions :-

1. Materials or substances occurring in nature which can be exploited for economic gain is
a)Human resources
b)Natural resources
c)Non-Natural resources
d)All of the above

2. Uneven heating of air over land and water-bodies causes
a)Rain
b)Monsoon
c)Winds
d)Life

3. Nitrogen fixation can be done by
a)Metalloenzymes
b)Rhizobium
c)Nitrogenases
d)Both a and c

4. Atmosphere maintain the temperature of earth because
a)It contains water vapour
b)It hold air, which is bad conductor of heat
c)It absorbs the heat rays
d)Both (b) and (c)

5. Molecules of proteins contain
a)Carbon
b)Nitrogen
c)Oxygen
d)All of these

6. Which is not example of natural resources?
a)Oxygen
b)Water
c)Nitrogen
d)Organism life

7. The outermost crust of the earth is called known as
a)Hydrosphere
b)Atmosphere
c)Biosphere
d)Lithosphere

8. Reason of depletion of ozone molecules in the stratosphere is due to
a)Chlorine compound
b)Fluorine compound
c)Halogen compound
d)None of these

9.The life supporting zone of the earth is
a)Lithosphere
b)Hydrosphere
c)Atmosphere
d)Biosphere

10. What is the movement of air in day time?
a)Direction of wind is from sea to land
b)Direction of wind is from sea to river
c)Direction of wind is from land to land
d)Direction of wind is from land to sea

Chapter - 14 Natural resources Quiz 1 | Class 9th

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