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Questions and Answers
What are tectonic plates?
What are tectonic plates?
Which continents of today were part of the Gondwana land?
Which continents of today were part of the Gondwana land?
What is a basin?
What is a basin?
What are the two major divisions of the river systems of India?
What are the two major divisions of the river systems of India?
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The Himalayan rivers have long courses from their source to the sea.
The Himalayan rivers have long courses from their source to the sea.
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The elevated area that separates two drainage basins is known as a ________.
The elevated area that separates two drainage basins is known as a ________.
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Match the following physiographic divisions of India with their key features:
Match the following physiographic divisions of India with their key features:
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Study Notes
Key Physical Features of India
- India is a vast country located entirely in the Northern Hemisphere
- The Indian landmass extends between latitudes 8°4′ N and 37°6′ N, and longitudes 68°7′ E and 97°25′ E
- India's total area accounts for about 2.4% of the total geographical area of the world
- The country is divided into two almost equal halves by the Tropic of Cancer passing through the middle
- India's landmass can be divided into six major physiographic divisions:
The Himalayan Mountains
- The youngest and one of the most rugged mountain ranges in the world
- Stretches over a distance of about 2,500 km
- Consists of three parallel ranges - the Great or Inner Himalayas, the Lesser Himalayas, and the Outer Himalayas or the Shivaliks
- The Great Himalayas have the highest peaks with an average height of 6,000 m
The Northern Plains
- Formed by the deposition of sediments brought down by the rivers flowing from the Himalayas
- Extremely flat and fertile region, ideal for agriculture
- Covers an area of about 7 lakh sq km
The Peninsular Plateau
- One of the most ancient land masses on the earth's surface
- Lies to the south of the Indo-Gangetic Plain
- Gently slopes from west to east
The Indian Desert
- Comprises the western part of the country
- Characterized by sand dunes, salt lakes, and sparse vegetation
The Coastal Plains
- Located along the western and eastern coasts of the country
- Western Coastal Plain is narrow while the Eastern Coastal Plain is broad
The Islands
- The Lakshadweep Islands in the Arabian Sea and the Andaman and Nicobar Islands in the Bay of Bengal
Contrasts in the Landforms
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The highest point in India is the K2 peak in the Karakoram range at 8,611 m
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The lowest point is the Kuttanad region in Kerala which is 2 m below sea level### Geography of the Indian Subcontinent
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The Indian subcontinent is a vast and diverse land mass, comprising the countries of India, Pakistan, Bangladesh, Nepal, Bhutan, and Sri Lanka
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The Himalayan mountain range forms the northern boundary of the Indian subcontinent
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The Himalayan range is divided into three main sections:
- The Greater Himalayas
- The Lesser Himalayas (also known as the Himachal or Kumaon Himalayas)
- The Outer Himalayas (also called the Shivalik or Lower Himalayas)
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The Greater Himalayas are the highest, with peaks exceeding 8,000 meters
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The Himalayas were formed by the collision of the Indian and Eurasian tectonic plates, making them one of the youngest and most geologically active mountain ranges
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The Himalayas are composed of highly compressed and altered rocks, with glaciers and perennial snow cover
The Northern Plains
- The Northern Plains are formed by the alluvial deposits of the Indus, Ganga, and Brahmaputra river systems
- These plains stretch from the Arabian Sea to the Bay of Bengal, covering parts of Pakistan, India, and Bangladesh
- The Northern Plains are broadly divided into:
- The Upper Gangetic Plain in the north
- The Lower Gangetic Plain in the south
- The rivers flowing through the plains disappear into the Bhabhar belt and re-emerge in the Terai region
- This region is densely populated and agriculturally very productive due to the fertile alluvial soil and favorable climate
The Peninsular Plateau
- The Peninsular Plateau is an ancient, geologically stable landmass composed of igneous and metamorphic rocks
- It is bordered by the Western Ghats on the west and the Eastern Ghats on the east
- The Central Highlands and the Deccan Plateau are the two major physiographic divisions of the Peninsular Plateau
- The Deccan Plateau slopes gently from west to east and is marked by broad and shallow valleys
- The Western Ghats are higher than the Eastern Ghats, with their average elevation being 900-1,600 meters compared to 600-900 meters for the Eastern Ghats
Coastal Regions and Islands
- India has a long coastline along the Arabian Sea, the Bay of Bengal, and the Indian Ocean
- The western coast is called the Western Coastal Plains, while the eastern coast is known as the Eastern Coastal Plains
- Major coastal features include the Rann of Kutch, the Lakshadweep Islands, and the Andaman and Nicobar Islands
- The Lakshadweep Islands are a group of small coral islands located off the south-western coast of India
- The Andaman and Nicobar Islands are an elongated group of islands located in the Bay of BengalI apologize, but the provided text appears to be a jumbled collection of symbols, emojis, and special characters. It does not form a coherent text that can be understood or summarized.
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