Biosphere reserves in India

Biosphere Reserve (BR) is an international designation by UNESCO for representative parts of natural and cultural landscapes extending over large area of terrestrial or coastal/marine ecosystems or a combination thereof. The Indian government has established 18 biosphere reserves in India. Eleven of the eighteen biosphere reserves are a part of the World Network of Biosphere Reserves, […]

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Latitude and Longitude

What is Latitude and Longitude? Latitude and longitude, coordinate system by means of which the position or location of any place on Earth’s surface can be determined and described. Latitude is a measurement on a globe or map of location north or south of the Equator. Longitude is a measurement of location east or west of the prime meridian at Greenwich, the specially designated […]

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भारत की प्रमुख झीलें (Lakes of India)

झील जल का वह स्थिर भाग है जो चारो तरफ से स्थलखंडों से घिरा होता है। झील की दूसरी विशेषता उसका स्थायित्व है। सामान्य रूप से झील भूतल के वे विस्तृत गड्ढे हैं जिनमें जल भरा होता है। झीलों का जल प्रायः स्थिर होता है। झीलें मुख्यत: दो प्रकार की होती हैं – खारे (saline) […]

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Atmosphere of Earth

The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth’s gravity. How many atmospheres does the earth have? Earth’s atmosphere is divided into five main layers: the exosphere, the thermosphere, the mesosphere, the stratosphere and the troposphere. Layer Altitude Range (Km) Temperature […]

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