1.The Himalayas:TheHimalaya mountainsextend for about 2,500 kilometers, separating theIndian subcontinentfrom the rest of Asia. The Indian subcontinent, once connected to Africa, collidedwith the Eurasian continent about 50 million to 55 millionyears ago, forming the Himalayas. The Indian subcontinent is still crashing northwardinto Asia, and the Himalayas are growing about 5 centimeters (2 inches) every year.The Himalayas cover more than 612,000 km2, a territory that covers the northern provinces of India and almost all of Nepal and Bhutan. The Himalayas are sovastthat they are composed of three different mountain belts. The northernmost belt, known as the Great Himalayas, has the highest averageelevationat 6,096 meters. The belt containsnine of the highest peaks in the world, which all reach more than 7,925 meters tall. This belt includes the highest mountainsummitin the world, Mount Everest, which stands at 8,850 meters.