Answer: Option D. -> Mahadeo hills are in the west of Maikala hills.
Answer: (d)The Mahadeo Hills are a range of hills in Madhya Pradesh which form the central part of the Satpura Range. As evident from the map given below, they are situated to the west of Maikal Hills.

Answer: Option B. -> 1, 4, 3, 2
Answer: (b)
Aravalli → Eastern Ghats → Deccan Plateau → Himalayas

Answer: Option D. -> Sikkim
Answer: (d)
Nathu La is a mountain pass in the Himalayas. It connects the Indian state of Sikkim with China’s Tibet Autonomous Region. The pass, at 4,310 m above mean sea level, forms a part of an offshoot of the ancient Silk Road.
On the Indian side, the pass is 54 km east of Gangtok, the capital of the Indian state of Sikkim on JN Marg and only citizens of India can visit the pass, that too after obtaining a permit in Gangtok.
Nathu La is one of the three open trading border posts between China and India; the other two are Shipkila in Himachal Pradesh and Lipulekh (or Lipulech) in Uttarakhand

Answer: Option A. -> 2500
Answer: (a)The Himalayas are approximately 2400 km in length with an average width of about 320 to 400 km. The Himalayas are the enormous mountain system of Asia. They are the highest mountain range found in the world.

Answer: Option C. -> Arunachal Pradesh and Gujarat
Answer: (c)

Answer: Option A. -> Dehradun
Answer: (a)
The Survey of India is headquartered at Dehra Dun, Uttarakhand. It is India's central engineering agency in charge of mapping and surveying.
Set up in 1767 to help consolidate the territories of the British East India Company, it is one of the oldest Engineering Departments of the Government of India.

Answer: Option C. -> Lagoon of Kerala
Answer: (c)Kayal is a Lagoon of Kerala.

Answer: Option A. -> Lake
Answer: (a)Loktak Lake, the largest freshwater lake in northeast India, also called the only Floating lake in the world due to the floating phumdis on it, is located near Moirang in Manipur state.

Answer: Option C. -> Nathu la
Answer: (c)
Nathu La is a mountain pass in the Himalayas. It connects the Indian state of Sikkim with China’s Tibet Autonomous Region. The pass, at 4,310 m above mean sea level, forms a part of an offshoot of the ancient Silk Road.
The pass would be particularly useful for pilgrims visiting monasteries in Sikkim such as Rumtek, one of the holiest shrines in Buddhism. For Hindus, the pass reduces the journey time to Mansarovar Lake from fifteen to two days.

Answer: Option A. -> Garhwal Himalayas
Answer: (a)