Question

Which is the oldest mountain range in India?
a.Aravalli
b.Maikal
c.Himalaya
d.Mahadeva

Answer 1

Hint: The mountains become old due to weathering after millions of years. In India, the oldest mountain range is located in the states of Rajasthan and Madhya Pradesh.

Complete answer:
a.Aravalli: The Aravallis are a series of fold mountains in Rajasthan state of India and extending to the parts of Madhya Pradesh. They are old fold mountains and have stopped growing due to the enormous weathering they have been subjected to over the years. They are almost 1.8 billion years old. So, it is the correct option.
b.Maikal: The Maikal hills were formed alongside the Vindhyas and are about 1 billion years old. They are one of the oldest mountains in India but not as old as the Aravallis. So, it is an incorrect option.
c.Himalaya: The Himalaya mountain range houses one of the most iconic peaks of India and the world. It is a series of young fold mountains which was formed due to the collision of the Indian and the Asian Tectonic plates some 40 million years ago. They are rising in height as the plates are still moving northwards and southwards. So, it is an incorrect option.
d.Mahadeva: The Mahadeva hills were formed alongside the Satpuras and are also about 1 billion years old. They are one of the oldest mountains in India but not as old as the Aravallis. So, it is an incorrect option.

So, the correct answer is option a.

Note: The Aravallis are fold mountains and have lesser valleys in between the peaks. However, the Mahadeva and Maikal hills are fold mountains and have various shallow and deep valleys which make it accessible to harvest the natural resources.