Mountains, Hills, and Trekking Geography

The Chhotanagpur Plateau is known as the Ruhr of India due to its vast mineral resources, including coal, iron ore, and manganese.

Denali, formerly known as Mount McKinley, is the highest mountain peak in North America, located in Alaska. It reaches an elevation of 20,310 feet above sea level.

Bharti is the third Indian research station in Antarctica, located in the Larsemann Hills region, following Dakshin Gangotri and Maitri.

India's Eastern Ghats and Western Ghats meet at the Nilgiri hills. The Western Ghats Mountains are in the west. The Eastern Ghats Mountains meet the Western Ghats Mountains at Nilgiri Hills. The Nilgiri Hills are part of a larger mountain chain known as the Western Ghats. 

Greater Himalayas, Zanskar Range, Ladakh Range and Karakoram are the correct order from South to North. The Himalayas does not stand alone in the northern reaches of South Asia. To its north are the parallel and lesser ranges of Ladakh, Zaskar and Kailas. From northern Kashmir, the Karakoram stretches out over the disputed borders of India with Pakistan and China. 

Sabarmati rises in the Aravallis. Sabarmati river rises in the Aravali hills, which roughly mark the western boundary of Udaipur District, i.e. Mount Abu area, and flows in a south-westerly direction. 

The Caucasus Mountains are located between the Black Sea and the Caspian Sea.

Dhaulagiri is a mountain in the Himalayas with an elevation of 8,167 meters, which is higher than the other options listed (Annapurna is 8,091m, Nanda Devi is 7,816m, Badrinath is significantly lower).

Himachal Pradesh is generally divided into three main physiographic zones or mountain ranges: the Outer Himalayas (Shivaliks), the Inner Himalayas (Lesser Himalayas), and the Greater Himalayas.

The districts of Hamirpur and Una are located in the lower altitude region of the state, which is part of the Outer Himalayas or the Shivalik range.

The Outer Himalayas are commonly referred to as the Shivalik range, and historically or locally, they are sometimes associated with names like Manak Parbat or Lower Himalayas, making 'All of these' the most comprehensive answer.

The highest pass in Himachal Pradesh is the Parang La or similar high-altitude passes, which are located in the Lahaul-Spiti district.

The elevation of Shimla is generally cited as approximately 2205 meters above sea level. This is a standard geographical fact regarding the capital of Himachal Pradesh.

Mount Everest is located in Nepal, on the border between Nepal and Tibet (China). While the mountain sits on the border, Nepal is the primary answer as it's the sovereign nation where Everest is most associated and accessible from.

The Himalayan mountain range extends from the Nanga Parbat in the west to the Namcha Barwa in the east.