Question

Which of the following is the oldest mountain range?

• A. Himalaya
• B. Nilgiri Hills
• C. Satpuras
• D. Karakoram
• E. Aravalis

Hint:

When remembering the oldest mountain ranges, focus on the Aravalis, as they are the first to have formed during the Precambrian era, well before others like the Himalayas and Karakoram.

Answer 1

Answer: (E)

The Aravalli Range is considered the oldest mountain range in India. It is one of the oldest ranges in the world, with an age of over 2.5 billion years. The Aravalis are significantly older than the other mountain ranges listed in the options. Step 1: The Aravalis.
The Aravalis formed during the Precambrian period, making them the oldest mountain range in India. Over time, erosion has reduced their height, but they still remain one of the most ancient mountain ranges.

Step 2: The Himalayas.
The Himalayas, although one of the youngest and highest mountain ranges in the world, are geologically much younger than the Aravalis. They were formed due to the collision between the Indian plate and the Eurasian plate, which occurred around 50 million years ago.

Step 3: Other Mountain Ranges.
- The Nilgiri Hills and the Satpuras are also relatively younger mountain ranges. - The Karakoram range, located in the northern part of India, is younger than the Aravalis as well. Thus, the correct answer is option (E), as the Aravalis are the oldest mountain range.

Final Answer: \[ \boxed{\text{(E) Aravalis}} \]