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Apr 29,2019     

Apr 29,2019     

Apr 29,2019     

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Apr 29,2019     

The article deals with various classification of lakes based on its origin, nature of inflow-outflow and trophic level. The article is useful for various competitive examinations

Apr 29,2019     

There are three major types of rocks, study about their origin, transformation and details of the cycle of rocks transformation

Apr 29,2019     

A Tsunami also called seismic sea waves, is one of the most powerful and destructive natural forces. Learn about its origin, effects and areas prone to Tusanami waves

Apr 29,2019     

A volcano is a rupture in the crust of the Earth from where gases, ashes and molten rock material – magma – escape to the ground. A volcano is called an active volcano if the materials mentioned are being released or have been released out in the recent past.

Apr 29,2019     

Those topographic features that resemble the volcanic landforms but are non volcanic in origin are known as pseudo volcanic features. The pseudo volcanic features include meteorite crater, mud volcanoes, and salt plugs (salt dome).

Apr 29,2019     

On the basis of out flow of lava volcanism can be classified into four types- Exhalative, Effusive, Explosive and subaqueous Volcanism. Exhalative volcanism is characterized by the discharge of materials in the gaseous form. It includes gases like steam, Sulphur Dioxide, carbon dioxide, carbon monoxide, hydrogen etc.

Apr 29,2019     

The landforms formed by the action of volcanoes and volcanic eruptions are known as volcanic landforms. The extrusive igneous rocks are formed when the cooling of Lava occurs above the Earth's surface. The intrusive igneous rocks or plutonic rocks are formed when the Magma cools within the earth's crust.

Apr 29,2019     

Volcanism refers to an igneous activity which includes the formation of magma, its upward movement, ejection of magma (lava) on the earth’s surface, and its cooling and solidification. Ejection of Lava to the surface during volcanic eruptions happens by the Fissure eruption and Central eruption.

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