Question

What is weathering? Describe the different types of weathering.discuss how the following help in formation of new landforms
Rivers , winds , glaciers , sea waves
Explain the action of the following weathering agents
Burrowing animal, lichens and mosses , rainwater

Answer 1

Rocks, minerals, soils normally change their structure under the action or influence of certain environmental forces. Biological activity, extreme weather, and agents of erosion such as water, wind and ice are examples of environmental forces that influences the continuous breakdown, wearing away and loosening of rocks and soils. This is what is termed as weathering.

Answer 2

breaking of rock by natural means is called weathering.
. chemical weathering (main agent is rain water)
. physical weathering( agents are temperature, frost,cold)
. biotic weathering (animals,plants)
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