The Himalayas are wider in which sector of India?

Correct option is A

The correct answer is (A) Western Himalayas

Explanation:
• The Himalayan mountain range exhibits significant geographic and structural differences across its extent, being notably wider in the Western sector compared to its Eastern counterpart.
• In the Western region, encompassing Jammu and Kashmir, Ladakh, and parts of Himachal Pradesh, the mountain system spans an expansive width of approximately 400 kilometers.
• In contrast, as the range extends eastward toward Arunachal Pradesh, it narrows down significantly to a width of around 150 kilometers.
• This variation is due to the greater compressive forces exerted on the eastern side during the tectonic collision between the northward-moving Indian plate and the Eurasian plate, which compressed the mountains over a smaller area.

Information Booster:
• Because the Eastern Himalayas experienced higher compressive forces, they rise much more abruptly from the plains, resulting in steeper slopes and higher vertical relief over shorter distances.
• The Western Himalayas feature a series of distinct parallel ranges, including the Karakoram, Ladakh, Zanskar, Great Himalayas, and Pir Panjal, which contributes to their greater overall width.
• The difference in width also affects regional climates; the narrower Eastern Himalayas receive higher monsoonal rainfall, creating a dense, biodiverse humid environment, while the wider Western Himalayas feature more arid, high-altitude cold desert zones.

Additional Knowledge:
• Central Himalayas (Option B): Covers the segment passing through Nepal and Uttarakhand, representing a transitional zone in terms of both width and ecological characteristics.
• Eastern Himalayas (Option C): Though narrower, this sector features higher precipitation levels and contains major peaks like Kanchenjunga, rising sharply near the plains.
• Shiwalik Himalayas (Option D): Represents the outermost, youngest sub-range of the foothills running along the entire southern length of the mountains, rather than a distinct longitudinal geographic sector.