Atmosphere One Mark Questions

9th Standard

    Reg.No. :
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Social Science

Time : 00:30:00 Hrs
Total Marks : 10
    5 x 1 = 5
  1. ______ is the most important gas for the survival of living organisms.

    (a)

    Helium

    (b)

    carbon-di-oxide

    (c)

    oxygen

    (d)

    oxygen

  2. The ________  is the chief energy source of the Earth.

    (a)

    Sun

    (b)

    Moon

    (c)

    Stars

    (d)

    Clouds.

  3. _____  clouds are called 'Sheep clouds'

    (a)

    Alto-cumulus

    (b)

    Alto-Stratus

    (c)

    Nimbo - stratus

    (d)

    Cirro-stratus

  4. The upper most layer of the atmosphere is ___________

    (a)

    Statrosphere

    (b)

    Mesosphere

    (c)

    Exosphere

    (d)

    Thermosphere

  5. This precipitation is a mixture of snow and rain

    (a)

    Sleet

    (b)

    Snow

    (c)

    Hail

    (d)

    Hailstones

  6. 5 x 1 = 5
  7. Anemometer

  8. (1)

    wind speed

  9. Wind Vane

  10. (2)

    direction of wind

  11. Leeward side

  12. (3)

    21%

  13. Oxygen

  14. (4)

    78%

  15. Nitrogen

  16. (5)

    rain shadow region

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