Biosphere Model Question Paper

9th Standard

    Reg.No. :
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Social Science

Time : 01:00:00 Hrs
Total Marks : 35
    5 x 1 = 5
  1. The life supporting layer is known as

    (a)

    Atmosphere

    (b)

    Hydrosphere

    (c)

    Lithosphere

    (d)

    Biosphere

  2. The branch of science that deals about ecosystem is called

    (a)

    Etymology

    (b)

    Geology

    (c)

    Limnology

    (d)

    Ecology

  3. Abiotic components include

    (a)

    Non-living things

    (b)

    Living things

    (c)

    only plants

    (d)

    only animals

  4. A healthy ecosystem provides

    (a)

    clean water

    (b)

    enriched soil

    (c)

    raw materials

    (d)

    All of the above

  5. Assertion (A): In temperate grassland biomes pastoral industry becomes the main occupation.
    Reason (R): Apart from wheat cultivation, tall and short soft grass are grown in th temperate grassland biomes.
    a) Both assertion (A) and reason (R) are true; R explains A
    b) Both assertion(A) and reason (R) are true; R does not explain A
    c) A is true; R is false
    d) Both A and R are false

    (a)

    Both assertion (A) and reasonrk) are true; R explains A

    (b)

    Both assertion(A) and reasontk) are true; R does not explain A

    (c)

    A is true; R is false

    (d)

    Both A and R are false

  6. 5 x 2 = 10
  7. In India where do we find hot spots?

  8. Mention about the human settlement in the Tropical Forest Biomes.

  9. What threat is posed by the savanna grasslands?

  10. Tropical Grasslands and Temperate grassland.

  11. Write a note on Biodiversity.

  12. 2 x 5 = 10
  13. Explain the various components of ecosystem

  14. Explain about the aquatic biomes on Earth.

  15. 1 x 10 = 10
  16. Locate the following on the world outline map.
    1. Priairies
    2. Downs
    3. Tundra Biomes
    4. Equatorial Biomes

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