Consider the following statements about the ‘Roaring Forties’:
I. They blow uninterrupted in the Northern and

Question

Consider the following statements about the ‘Roaring Forties’:
I. They blow uninterrupted in the Northern and Southern Hemispheres.
II. They blow with great strength and constancy.
III. Their direction is generally from North - West to East in the Southern Hemisphere.
IV. Overcast skies, rain and raw weather are generally associated with them.
Which of these statements are correct?

Accepted Answer

The correct answer is B because of the following reasons:

Statement I is incorrect because the Roaring Forties are unique to the Southern Hemisphere. In the Northern Hemisphere, large landmasses obstruct the wind flow, preventing these winds from blowing uninterrupted. In the Southern Hemisphere, the vast expanse of open ocean allows them to gain great speed.

Statement II is correct as these are powerful westerly winds that blow with high consistency and strength due to the lack of land obstructions in the southern latitudes.

Statement III is correct because these winds blow from the subtropical high pressure belt toward the subpolar low pressure belt. Due to the Coriolis effect, their direction in the Southern Hemisphere is from the North West toward the South East.

Statement IV is correct because these latitudes are characterized by frequent cyclonic activity, leading to persistent overcast skies, heavy rain, and damp, cold weather conditions.

Answer

I, II and III

Answer

II, III and IV

Answer

I, III and IV

Answer

I, II and IV

Explanation

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