Q3 of 13 Page 22

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

i. (c) ii. (d) iii (a) iv. (b)


i. Land use refers to productive and suitable use of land in a way that the health of the soil and land remains intact.


ii. Humus is formed by decomposition of leaves and other weathered plant parts by microorganisms found in the soil. Humus is deposited on the topmost layer of soil.


iii. Rock dams are built across a drainage way to collect the eroded sediments. Rock dams are temporary structures.


iv. Biosphere is also known as ecosphere and is collective of all the ecosystems found in our universe.


More from this chapter

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2

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

a. Shelter belts


b. Mulching


c. Terrace cultivation

 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

 4

State whether the given statement is true or false. If true write the reasons.

i. Ganga-Brahamputra plain of India is an overpopulated region.


ii. Water availability per person in India’s declining.


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.

 5

Discuss some more reasons which are responsible for changes of land use pattern. Has your place undergone any change in the land use pattern in recent years?

Find out your parents and elderly people. You can conduct an interview by asking the following questions.






































































Place



When your grand parent’s were in their 30s



When your parents were in their 30’s



Why do you think this is happening?



Are common areas and open spaces disappearing?



Rural


Number of cattle and poultry owned







Number of trees and ponds in the village







Main occupation of the head of the family







Urban


Number of cars owned







Number of rooms in the house







Number of metalled roads







Number of flyovers in the city







Number of parks and playgrounds











Based on the table you have just






completed, draw a picture of land use patterns that you foresee in your neighbourhood after 20 years. Why do you think that land use patterns change over the years?