Q2 of 13 Page 22

Which one of the following methods is most appropriate to check soil erosion on steep slopes?

a. Shelter belts


b. Mulching


c. Terrace cultivation

Terrace farming decreases both erosion and surface run off. It is mostly used in hilly areas.

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1

Suggest any three ways to conserve water.

 2

Which one of the following is NOT a factor of soil formation?

a. Time


b. Soil texture


c. Organic matter

 2

Which one of the following is NOT in favour of the conservation of nature?

a. Switch off the bulb when not in use


b. Close the tap immediately after using


c. Dispose poly packs after shopping

 3

Match the following:

a. prevent soil erosion


b. narrow zone of contact between lithosphere, hydrosphere and atmosphere


c. productive use of land


d. organic matter deposited on top soil contour ploughing.


i. Land use


ii. Humus


iii. Rock dams


iv. Bio-sphere