Geography : Atmosphere - Important Question Paper

9th Standard

    Reg.No. :
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Social Science

Time : 01:00:00 Hrs
Total Marks : 50

    Part A

    Multiple Choice Question

    16 x 1 = 16
  1. ______ is the most important gas for the survival of living organisms.

    (a)

    Helium

    (b)

    carbon-di-oxide

    (c)

    oxygen

    (d)

    oxygen

  2. The lowest layer of the atmosphere is _______ 

    (a)

    Troposphere

    (b)

    Stratosphere

    (c)

    Exosphere

    (d)

    Mesosphere

  3. _______  reflects radio waves

    (a)

    Exosphere

    (b)

    Ionosphere

    (c)

    Mesosphere

    (d)

    Stratosphere

  4. The average global surface temperature is ______ 

    (a)

    120°C

    (b)

    130°C

    (c)

    140°C

    (d)

    150°C

  5. The process of change of state of water from gaseous to liquid state is called ________ 

    (a)

    Precipitation

    (b)

    evaporation

    (c)

    transpiration

    (d)

    condensation.

  6. _____  clouds are called 'Sheep clouds'

    (a)

    Alto-cumulus

    (b)

    Alto-Stratus

    (c)

    Nimbo - stratus

    (d)

    Cirro-stratus

  7. The Monsoons are _________ 

    (a)

    Prevailing winds

    (b)

    Periodic winds

    (c)

    local winds

    (d)

    none of the above

  8. Dew in the form of ice crystals is called ____ 

    (a)

    frost

    (b)

    fog

    (c)

    mist

    (d)

    sleet.

  9. _____  is called the eye of the storm.

    (a)

    Pressure

    (b)

    wind

    (c)

    cyclones

    (d)

    snow.

  10. The vertical movement of air is called ______ 

    (a)

    Wind

    (b)

    storm

    (c)

    Air current

    (d)

    drift

  11. This precipitation is a mixture of snow and rain

    (a)

    Sleet

    (b)

    Snow

    (c)

    Hail

    (d)

    Hailstones

  12. Humidity of the atmosphere is measured by the wet and dry bulb thermometer called _________

    (a)

    Anemometer

    (b)

    Thermometer

    (c)

    Hygrometer

    (d)

    Barometer

  13. This is one of the most feared weather phenomenon.

    (a)

    Snow

    (b)

    Hailstones

    (c)

    Sleet

    (d)

    Hails

  14. Tropical cyclones in India is known as _________

    (a)

    baguios

    (b)

    willy willy

    (c)

    hurricanes

    (d)

    Cyclones

  15. This is the wettest place of India.

    (a)

    Mawsynram

    (b)

    Western Ghats

    (c)

    Shillong

    (d)

    Pune

  16. This is the earth's magnetic belt________

    (a)

    Thermosphere

    (b)

    Stratosphere

    (c)

    Mesosphere

    (d)

    Magnetosphere

  17. Part B

    Answer all the Two Mark Questions

    8 x 2 = 16
  18. Mention the factors that affect the climate?

  19. Write short note on Lapse rate.

  20. What are the processes responsible for heating the atmosphere?

  21. How is the atmospheric Pressure measured?

  22. Polar Easterlies are cold and dry. Why it is so?

  23. What are Auroras?

  24. What happens to atmospheric pressure with altitude?

  25. Define the terms (a) Absolute humidity (b) Relative humidity.

  26. Part C

    Answer all the Three Mark Questions

    1 x 3 = 3
  27. Cuddalore and Nagapattinam are always affected by cyclones. Why?

  28. Part D

    Answer all the Five Mark Questions

    3 x 5 = 15
  29. Write a paragraph about the structure of the atmosphere.

  30. How are clouds classified? Explain them.

  31. How are cyclones formed? How are they classified?

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