NCERT Solutions for Class 8 Social Science Resources and Development Chapter 2

Land, Soil, Water, Natural Vegetation and Wildlife Resources Class 8

Chapter 2 Land, Soil, Water, Natural Vegetation and Wildlife Resources Exercise Solutions

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Exercise : Solutions of Questions on Page Number : 22

Q1 :  

Answer the following questions.

(i) Which are the two main climatic factors responsible for soil formation?

(ii) Write any two reasons for land degradation today.

(iii) Why is land considered an important resource?

(iv) Name any two steps that government has taken to conserve plants and animals.

(v) Suggest three ways to conserve water.


Answer :

(i)Temperature and rainfall are the two main climatic factors responsible for soil formation.

(ii)Deforestation and the indiscriminate use of chemical pesticides and fertilisers in agricultural lands are two factors contributing to land degradation.

(iii)Land is among the most important natural resources. It provides habitation to a wide variety of flora and fauna. Human beings use land for various purposes such as agriculture, forestry, mining, building houses and roads, and setting up industries.

(iv) Two steps that the government has taken to conserve plants and animals:

(a) Has set up national parks, wildlife sanctuaries and biosphere reserves for protecting natural vegetation and wildlife; for example, the Kaziranga National Park in Assam.

(b) Has banned the killing of lions, tigers, deer, great Indian bustards and peacocks. It has also prohibited the trade of the species of plants and animals protected under the international agreement CITES.

(v)Three ways to conserve water:

(a) Rain-water harvesting

(b) Reducing wastage of water

(c) Replenishing ground water by promoting afforestation

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Q2 :  

Tick the correct answer.

(i) Which one of the following is nota 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


Answer :

(i)Which one of the following is nota 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

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Q3 :  

Match the following.

(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

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(e) Contour ploughing


Answer :

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Q4 :  

State whether the given statements are true or false. If true, write the reasons.

(i) Ganga-Brahmaputra plain of India is an overpopulated region.

(ii) Water availability per person in India is 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.


Answer :

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Resources and Development - Social Science : CBSE NCERT Exercise Solutions for Class 8th for Land, Soil, Water, Natural Vegetation and Wildlife Resources will be available online in PDF book form soon. The solutions are absolutely Free. Soon you will be able to download the solutions.

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