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Thermal Radiations  In atmosphere, two types of thermal radiations are observed. One coming to the atmosphere from outer space as lower wavelength radiations mainly from...

Atmosphere  The atmosphere is a thick gaseous envelope which surrounds the Earth from all sides and attached to the Earth’s surface by gravitational force.  The atmosphere...

Geomorphic Processes   Geomorphic processes are broadly classified as endogenic processes, driven by forces of inside the Earth surface or internal forces and exogenic processes, driven...

Erosion  Large-scale transportation of the weathered materials is termed as erosion.  Different activities, which take part in the process of erosion are as follows:  — Abrasion or...

Weathering  It is defined as mechanical disintegration and chemical decomposition of rocks through the actions of various elements of weather and climate. In weathering, rocks...

Earthquakes   An earthquake is a vibration or oscillation of the surface of the Earth caused by the elasticity or the isostatic adjustment of the rocks,...