Assertion (A): Anti-cyclonic conditions are formed in winter season when atmospheric pressure is high and air temperatures are low.
Reason (R): Winter rainfall in Northern India causes development of anticyclonic conditions with low temperatures.
A
Both A and R are individually true, and R is the correct explanation of A
B
Both A and R are individually true, but R is NOT a correct explanation of A
C
A is true, but R is false
D
A is false, but R is true
Correct Answer: Option C
Explanation
1. Assertion (A): Anti-cyclonic conditions (areas of high atmospheric pressure) are typically associated with sinking air, clear skies, and stable weather. In winter, cold air is dense, leading to high surface pressure, favouring the formation of anti-cyclones, especially over large landmasses. So, anti-cyclonic conditions with high pressure and low air temperatures can form in winter. (True)
2. Reason (R): Winter rainfall in Northern India is primarily caused by Western Disturbances, which are extra-tropical cyclones originating from the Mediterranean region. These are low-pressure systems, not high-pressure anti-cyclones. The arrival of these disturbances disrupts existing high-pressure conditions, causing rainfall, not development of anti-cyclones. (False)
3. Therefore, Assertion (A) is true, but Reason (R) is false.