Explanation: The Himalayas, one of the most significant mountain ranges in the world, are divided into three main ranges: the outermost Shiwalik, the middle Himalaya, and the innermost Himadri. Each range has distinct characteristics and plays a crucial role in the geographical and ecological landscape of the region.
The outermost range, known as the Shiwalik, is the youngest and lowest of the three ranges. It is characterized by its lower elevation and is often referred to as the "foot hills" of the Himalayas. The Shiwalik range is composed of sedimentary rocks and is prone to landslides and erosion due to its geological youth and the heavy rainfall it receives.
The middle Himalaya, also known as Himachal, is the central range of the Himalayas. It includes the lesser Himalayas and is characterized by its moderate elevation, typically ranging from 1,500 to 4,500 meters. This range is significant for its biodiversity, with a variety of flora and fauna adapted to the diverse climatic conditions. The middle Himalaya is also important for agriculture and human settlements, as it provides a more hospitable environment compared to the higher ranges.
The innermost range, known as Himadri or the Great Himalaya, is the highest and most geologically stable of the three ranges. It includes the highest peaks in the world, such as Mount Everest, K2, and Kangchenjunga. The Himadri range is composed of metamorphic and igneous rocks and is characterized by its rugged terrain and extreme weather conditions.
Understanding the structure and characteristics of these ranges is essential for comprehending the geographical and ecological diversity of the Himalayan region. The middle Himalaya, or Himachal, plays a crucial role in this context, serving as a transitional zone between the lower Shiwalik and the higher Himadri ranges. This range is not only significant for its biodiversity but also for its cultural and economic importance to the region.
In summary, the middle Himalaya, also known as Himachal, is the correct term for the central range of the Himalayas, characterized by its moderate elevation and significant biodiversity. This knowledge is crucial for students of Indian geography and those preparing for competitive examinations that cover Indian physical geography.