Close Menu
    Facebook X (Twitter) Instagram
    CBSE Learning
    • Home
    • NCERT Solutions
    • Class 12
      • Class 12 Physics
      • Class 12 Chemistry
      • Class 12 Maths
      • Class 12th Biology
      • Class 12 English
      • Class 12 Accountancy
      • Class 12 Economics
      • Class 12 Business Studies
      • Class 12 Political Science
      • Class 12 Sociology
      • Class 12 Psychology
    • Class 11
      • Class 11 Maths
      • Class 11 Physics
      • Class 11 Chemistry
      • Class 11 Biology
      • Class 11 Accountancy
      • Class 11 English
      • Class 11 Economics
      • Class 11 Business Studies
      • Class 11 Political Science
      • Class 11 Psychology
      • Class 11 Sociology
    • Class 10
      • Class 10 English
      • Class 10 Maths
      • Class 10 Science
      • Class 10 Social Science
    • Class 9
      • Class 9 Maths
      • Class 9 English
      • Class 9 Science
      • Class 9 Social Science
    • Class 8
      • Class 8 Maths
      • Class 8 Science
      • Class 8 English
      • Class 8 Social Science
    • Class 7
      • Class 7 Maths
      • Class 7 Science
      • Class 7 English
      • Class 7 Social Science
    • Class 6
      • Class 6 Maths
      • Class 6 Science
      • Class 6 English
      • Class 6 Social Science
    CBSE Learning
    Home » NCERT Solutions for Class 8 Social Science Resources and Development part-3 Chapter 2 – Land, Soil, Water, Natural Vegetation and Wildlife Resources
    Class 8 Social Science

    NCERT Solutions for Class 8 Social Science Resources and Development part-3 Chapter 2 – Land, Soil, Water, Natural Vegetation and Wildlife Resources

    AdminBy AdminUpdated:August 11, 20234 Mins Read
    Facebook Twitter Pinterest LinkedIn Tumblr Email
    Share
    Facebook Twitter LinkedIn Pinterest Email

    Exercise : Solutions of Questions on Page Number : 22


    NCERT Solutions for Class 8 Social Science Resources and Development part-3 Chapter 2

    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


    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


    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
    –(e) Contour ploughing

    Answer :

    (i) Land use(c) Productive use of land
    (ii) Humus(d) Organic matter deposited on top soil
    (iii) Rock dams(a) Prevent soil erosion
    (iv) Arable land(b) Land suitable for agriculture

     


    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 :
    (i) Ganga-Brahmaputra plain of India is an overpopulated region.
    This statement is true. Plains and river valleys offer suitable land for agriculture. Hence, these are densely-populated areas of the world.
    (ii) Water availability per person in India is declining.
    This statement is true. Though water is present in abundance, fresh water is a scarce resource. Water availability is a serious problem in many regions of the world. Due to the wastage of water, deforestation, and the pollution and depletion of fresh water reserves (such as rivers and ground water), the availability of water is fast declining.
    (iii) Rows of trees planted in the coastal areas to check the wind movement is called intercropping.
    This statement is false. The described process is called shelter belts.
    Intercropping is the process in which different crops are grown in alternate rows, and are sown at different times to protect the soil from rain wash.
    (iv) Human interference and changes of climate can maintain the ecosystem.
    This statement is false. Human interferences and climatic changes for the most part adversely affect the balance of the ecosystem.


     

    Share. Facebook Twitter Pinterest LinkedIn Tumblr Email
    Previous ArticleNCERT Solutions for Class 8 Social Science Resources and Development part-3 Chapter 1-Resources
    Next Article NCERT Solutions for Class 8 Social Science Resources and Development Part-3 Chapter 3-Mineral and Power Resources
    Recent Posts
    • How many states and union territories are in India
    NCERT Book Solutions
    • NCERT Solutions for Class 12 Maths
    • NCERT Solutions for Class 12 Physics
    • NCERT Solutions for Class 12 Chemistry
    • NCERT Solutions for Class 12 Biology
    • NCERT Solution for Class 11 – Physics
    • NCERT Solutions for Class 11 Chemistry
    • NCERT Solutions for Class 11 Maths
    • NCERT Solutions for Class 11 Biology
    • NCERT Solutions for Class 11 – Accountancy
    • NCERT Solutions for Class 11 – English
    • NCERT Solutions for Class 10 Maths – 2023 Updated
    • NCERT Solutions for Class 10 Science
    • NCERT Solutions for Class 10 – English
    • NCERT Solutions for Class 9 Maths 2023
    • NCERT Solutions for Class 9 – Science
    Exams
    • Privacy Policy
    • NEET 2024
    • NCERT Solutions for Class 8 Sanskrit
    Links
    Latest News
    Contact Us
    Privacy Policy
    Ask a Doubt
    © 2023 CBSE Learning

    Type above and press Enter to search. Press Esc to cancel.