66.Consider the following statements:
- The winds which blow between 30° N and 60°
S latitudes through-out the year are known as
westerlies. - The moist air masses that cause winter rains
in North-Western region of India are part of
westerlies.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
The correct answer is 2 only.
- Westerlies
- These are permanent winds.
- These are prevailing winds that flow from the west towards the East.
- Westerlies flow between 30°N-60°N and 30°S-60°S degrees latitude. Hence statement 1 is NOT correct.
- This is also known as anti trades winds as it originates from the high-pressure area of Horse latitude and flows towards the subpolar low-pressure area.
- It blows from South West to North East in the Northern hemisphere and from Northwest to southeast in the southern hemisphere.
- These are stronger in the Southern hemisphere due to the vast ocean and comparatively less land.
- It is best observed between 40 to 60-degree latitude and these latitudes are also known as the Roaring forties, Furious fifties, and shrieking sixties.
- There are fluctuations in the subpolar region. Thus, they produce wet spells due to variations in weather.
- The moist air masses that cause winter rains in the North-Western region of India are part of Western disturbances that originate from the Mediterranean Sea. Hence statement 2 is correct.
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