Q. The Himalayan mountain range formed during which geological period? [UPPCL 2014]
Answer: Tertiary period
Notes: The Himalayas formed during the Tertiary period due to the collision of the Indian and Eurasian plates, starting about 50 million years ago. The intense folding uplifted sediments from the ancient Tethys Sea. Archean and Pre-Cambrian periods are too early for this orogeny; Quaternary period only saw minor changes.