Rock and Soil Book Back Questions

8th Standard EM

    Reg.No. :
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Social Science

Time : 00:45:00 Hrs
Total Marks : 30
    4 x 1 = 4
  1. Which of the following is known as sphere of rocks

    (a)

    Atmosphere

    (b)

    Biosphere

    (c)

    Lithosphere

    (d)

    Hydrosphere

  2. World soil day is observed on

    (a)

    15th August

    (b)

    12th January

    (c)

    15th October

    (d)

    5th December

  3. Fossils are found in

    (a)

    Sedimentary rocks

    (b)

    Igneous rocks

    (c)

    Metamorphic rocks

    (d)

    Plutonic rocks

  4. The major component of soil is

    (a)

    Rocks

    (b)

    Gas

    (c)

    Water

    (d)

    Minerals

  5. 3 x 1 = 3
  6. Scientific study of rocks is called ________.

    ()

    petrology

  7. The “skin of earth” is _________.

    ()

    soil

  8. _________ is known as the primary rocks.

    ()

    Igneous rocks

  9. 4 x 1 = 4
  10. Igneous rocks are called primary rocks.

    (a) True
    (b) False
  11. Slate is formed from shale.

    (a) True
    (b) False
  12. Red soil is formed by the process of leaching.

    (a) True
    (b) False
  13. Volcanic mountains are covered with sedimentary rocks.

    (a) True
    (b) False
  14. 2 x 2 = 4
  15. Metamorphic rock and sedimentary rock.

  16. Soil conservation and Soil erosion.

  17. 2 x 2 = 4
  18. a) Igneous rocks are called the primary rocks.
    b) Soil is the product of weathering of rocks.
    c) Sedimentary rocks are the hardest ones.
    d) Deccan plateau is the region of Igneous rocks.

  19. a) Soil erosion decreases its fertility.
    b) Dynamic metamorphism is caused by high temperature.
    c) Soil is a renewable source.
    d) Humus is a part of the top layer of soil.

  20. 2 x 3 = 6
  21. Define ‘rock’.

  22. State the types of soils.

  23. 1 x 5 = 5
  24. Classify and explain the soil?

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