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Geography

Geography   Aurora     The sun sends us more than heat and light; it sends lots of other energy and small particles our way. The protective magnetic field around Earth shields us from most of the energy and particles, and we don’t even notice them. But the sun...

Geography

Geography   Climatology   Atmosphere   Thick gaseous envelope around the Earth and is attached to the Earth’s surface by gravitational force. 97% of the atmosphere is estimated to be upto the height of 29 km even though it extends to thousands of kilometres....

Geography

Geography   Which of the following is the correct description of tidal bores? Gravitational bulge of the water surface of the ocean Steep wall of water created by incoming high tides in constricted estuaries of coastal rivers. Rise in sea level as high tide comes...

Geography

Geography   Latitude, Longitude and Time Zones Motions of the Earth, Origin and Evolution of the Earth and Interior of the Earth and Geological Time Scale Continental Drift, Sea Floor Spreading, Palaeomagnetism, Plate Tectonics Landforms of the Earth, Volcanoes,...

Geography

Geography   Movements of Ocean Water Tides   The periodical rise and fall of the sea level, once or twice a day, mainly due to the attraction of the sun and the moon, is called a tide. Another factor is centrifugal force which acts opposite to gravitational pull...

Geography

Geography     Oceanography Distribution of Water     Ocean Bottom Relief   Ocean Bottom Relief     Continental Shelf Continental shelf, a broad, relatively shallow submarine terrace of continental crust forming the edge of a...