c. Answer the following questions very briefly. 1. How are the various landforms formed on the surface of the Earth? 2 What are the different processes of weathering? 3 What are the agents which help in mechanical weathering? 4 When can rainwater be an effective agent of weathering? 5 Name the processes involved in chemical weathering.
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Landforms are formed on the surface of the earth due to the following natural processes.1 Dissolution And Carbonation, Hydration, Hydrolysis and Oxidation.2 The important agents of mechanical weathering are, The decrease in pressure that results from removal of overlying rock ,Freezing and thawing of water in cracks in the rock Formation of salt crystals within the rock Cracking from plant roots and exposure by burrowing animals.3 Weathering and erosion, along with the gravity-driven effect called mass wasting, are the fundamental processes by which rock is broken down and removed, collectively called denudation.4 Oxidation Hydrolysis Hydration Carbonation Reduction. :>
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