Question

The Himalayas block the .......... winds blowing from the north.

• A. Very cold
• B. Very hot
• C. Hot and dry
• D. Humid

Hint:

They block cold polar winds from Central Asia.

Answer 1

The Correct Option is A

Step 1: Winter Wind Source

During winter, extremely cold and dry continental air masses form over Central Asia and Siberia. Normally, these winds would move southward into India, but are prevented by physical barriers.

Step 2: Orographic Barrier

The Himalayas rise sharply above 8000 meters, acting as a massive barrier to these cold winds. The dense air cannot easily cross this wall, and thus the mountains block or deflect it.

Step 3: Climatic Outcome in North India

Due to this barrier, North India experiences mild winters instead of Siberian-like cold. The Himalayas prevent severe freezing, making agriculture (like Rabi crops) possible.

Step 4: Broader Role

This same orographic barrier also influences the summer monsoon, helping shape India’s diverse climate.

\[ \textbf{The Himalayas block frigid continental winds, moderating India’s winter climate.} \]