GENERAL KNOWLEDGE

Detailed explanation-1: -The four main physiographic divisions of Himachal Pradesh include the Shivaliks, the lesser Himalaya, the Great Himalaya, and the Zanskar range, in an approximate south-to-north order.

Detailed explanation-2: -The three major mountain ranges of the US are the Appalachian Mountains, the Rocky Mountains, and the Sierra Nevada. The Rocky Mountains, commonly known as the Rockies, are a major mountain range in western United States.

Detailed explanation-3: -The six major mountain ranges include: Himalayas-The Himalayan mountains in Asia were formed by a continental collision between the Indo-Australian and Eurasian plates.