Assertion (A): The Himalayas are young fold mountains.
Reason (R): Mount Everest, in the Himalayas, is the highest mountain peak in the world.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Both Assertion (A) and Reason (R) are correct, but R is not the correct explanation of A.
In an Assertion-Reason question, each statement is checked for truth first, and then R is tested as the cause of what A describes.
Assertion — correct. The Himalayas were formed fairly recently in the Earth’s history by the folding of rock layers, so they are young fold mountains.
Reason — correct. Mount Everest, on the Nepal–China border in the Himalayas, is the highest peak in the world.
The height of one peak does not tell how or when the mountains were formed, so R does not explain A.