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Consider the following statements:1. Cirrus clouds are formed at high altitudes.2. Cumulus clouds look like cotton wool.3. Stratus clouds are the layered clouds covering a large portion of the sky.4. Nimbus clouds are Back or dark in color.Identify the correct statements.1. 1, 2 and 32. 2, 3 and 43. Only 3 and 44. All the above

Answer» Correct Answer - Option 4 : All the above

The correct answer is All the above.

  • Cirrus Cloud:-
    • Cirrus clouds appear high in the atmosphere, above 20,000 feet (6 km).
    • Cirrus clouds are made of tiny ice crystals.
    • The atmosphere is very cold in the stratosphere where cirrus clouds occur. 
    • So, Statement 1 is correct.
  • Cumulus clouds:-
    • These clouds form when the air cools to the dew point, the temperature at which the air can no longer hold all its water vapour.
    • These “fair weather” clouds look like cotton wool.
    • If we look at a sky filled with cumulus, we may notice they have flat bases, which all lie at the same level.
    • So, Statement 2 is correct.
  • Stratus clouds:-
    • These are composed of thin layers of clouds covering a large area of the sky.
    • This is simply mist or fog when it forms close to the ground.
    • We can easily distinguish a stratus cloud by the long horizontal layers of cloud which have a fog-like appearance
    • So, Statement 3 is correct.
  • Nimbus Clouds:-
    • The word nimbus means a cloud that already has rain or snow falling from it.
    • These clouds are dark and seen during a thunderstorm along with thunder and lightning.
    • So, Statement 4 is correct.


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