Which one is correctly matched?

Karoh peak - Shivalik hills
Dhosi hills - Morni hills
Mewat hills - Aravali hills
Ghaggar Plain - Semi-desert plains

The correct answer is: A. Karoh peak – Shivalik hills.

The Shivalik hills are a sub-range of the Himalayas that run parallel to the main Himalayan range in the Indian states of Himachal Pradesh, Uttarakhand, Haryana, Punjab, and Delhi. The Karoh peak is the highest peak in the Shivalik hills, with an elevation of 2,970 meters (9,740 feet).

The other options are incorrect. The Dhosi hills are a sub-range of the Aravalli hills that run parallel to the main Aravalli range in the Indian state of Rajasthan. The Mewat hills are a sub-range of the Aravalli hills that run parallel to the main Aravalli range in the Indian state of Haryana. The Ghaggar Plain is a plain in the Indian states of Haryana, Rajasthan, and Punjab. It is a semi-arid plain with a hot and dry climate.