What geographic feature primarily controls the eastern boundary of the Indian Desert?

Correct option is C

Correct Answer: (c) Aravalli Hills
Explanation:
· The Aravalli Hills form the eastern limit of the Indian (Thar) Desert by preventing further spread of arid conditions into the eastern plains of Rajasthan.
· They act as a topographic barrier, influencing local climate and desert boundaries.
Information Booster:
· One of the oldest fold mountain ranges in the world (Precambrian age).
· Runs southwest–northeast from Gujarat through Rajasthan to Delhi.
· Helps in trapping moisture-laden winds and controlling desert expansion.
Additional Knowledge
(a) Western Ghats
· Run parallel to the western coast of India (Gujarat to Tamil Nadu).
· Known for high biodiversity, part of UNESCO World Heritage Sites.
· Major passes: Thal Ghat, Bhor Ghat, Palghat Gap.
· Responsible for heavy rainfall on the western coastal plains.
(b) Satpura Hills
· Located in central India, between the Narmada and Tapti rivers.
· Key peaks: Dhupgarh (highest point in Madhya Pradesh).
· Home to famous national parks like Satpura Tiger Reserve and Pachmarhi Biosphere Reserve.
· Form part of the Central Highlands.
(d) Vindhya Range
· Lies north of the Satpuras, extending across central India.
· Historically considered the traditional boundary between North and South India.
· Composed mainly of sandstone, shale, and limestone.
· Important for river systems like the Chambal and Betwa.