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Assertion (A) : 60°-65° latitudes in both the hemispheres have a low pressure belt instead of high pressure. Reason (R) : The low pressure areas are permanent over oceans rather than on land.
Explanation
Assertion (A) is correct: around 60°–65° latitudes there exist subpolar (temperate) low pressure belts where surface air converges and rises, especially over oceans [3]. However the Reason (R) is false as stated — these low pressure belts are not permanent features and are not described as permanently over oceans rather than land. Texts state that pressure belts oscillate seasonally and subpolar lows are best developed or mainly encountered over oceans because oceans moderate temperature contrasts, making the lows more pronounced there, not because they are permanent over water; in fact the pressure belts are not permanent in nature [3]. Thus A true, R false.
Sources
- [1] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 14: Climate > Pressure and Planetary Winds > p. 139
- [3] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 23: Pressure Systems and Wind System > Sub-Polar Low-Pressure Belt > p. 313
- [2] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 9: Atmospheric Circulation and Weather Systems > World Distribution of Sea Level Pressure > p. 77
SIMILAR QUESTIONS
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