Q.1 What is Soil ?
Ans. The thin layer of grainy substance covering the surface of the earth is called soil. It is closely linked to land.
Q2. What is Soil profile ?
Ans.
Q.3 Describe Land Slide ?
Ans.Landslides are simply defined as the mass movement of rock, debris or earth down a slope. They often take place in conjunction with earthquakes, floods and volcanoes.
Q.4 Draw the Chart of Soil Formation ?
Ans.
SECTION - B
1. Tick the correct answer.
(i) Which one of the following is NOT a factor of soil formation?
(a) time (b) soil texture (c) organic matter
(ii) Which one of the following methods is most appropriate to check
soil erosion on steep slopes?
(a) shelter belts (b) mulching (c) terrace cultivation
(iii) 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 polypacks after shopping
2. Match the followings.
(i) Land use (a) prevent soil erosion
(ii) Humus (b) land suitable for agriculture
(iii) Rock dams (c) productive use of land
(iv) Arable land (d) organic matter deposited on top soil
(e) contour ploughing
3. State whether the given statement is true or false.
If true, write the reasons.
(i) Ganga–Brahmaputra plain of India is an overpopulated region.(True)
(ii) Water availability per person in India is declining.(True)
(iii) Rows of trees planted in the coastal areas to check the wind
movement is called intercropping.
(iv) Human interference and changes of climate can maintain the
ecosystem.(False)
Anuj
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