The Himalayas or Himalaya are a mountain range in Asia, separating the plains of the Indian subcontinent(Indo-Gangetic Plain) from the Tibetan Plateau of China. They are the tallest mountains on Earth, and the youngest mount in the world which formed over the last 145 million years and it is not very old for mountains. The highest moutain in the range is Mt. Everest, reaching 8848m above sea leavel.The Himalayas is home to 10 of 14 of the world's highest peaks, the Eight-thousanders, and more than 50 peaks over 7,000 metres (23,000 ft).
The Himalayas are rich in biodiversity. Climates range from tropical at the base of the mountains to perennial snow and ice at the highest elevations. Here are just a few examples of Himalayan ecology: Montane Grasslands and Shrublands, Temperate Coniferous Forest, Temperate Broadleaf and Mixed Forests, Tropical and Sub-tropical Broadleaf Forests. The main rivers sourced in Himalayas are the Ganges, Indus, Yarlung, Yangtze, Yellow, Mekong, and Nujiang. All are major river systems for the continent of Asia.
The Himalayan countries are mainly 5 countries located near the Himalayas. About 70 million people live in the himalayas. The Himalayas stretch across the northeastern portion of India. They cover approximately 1,500 mi (2,400 km) and pass through the nations of India, Pakistan, China, Bhutan and Nepal. The Himalayas cover approximately 75% of Nepal. Serving as a natural barrier for tens of thousands of years, the range prevented early interactions between the people of India and the people of China and Mongolia.