Question

How does the following factors contributed in formation of soil ? (a) wind , (b) water, (c) sun.

Answer 1

wind and water bring sediments and other particles for soil formation
due to the heat of sun some rocks expand during day and contract while night .this leads to weathering and then to soil formation

Answer 2

a) wind :-
Strong winds influence the formation of soil by continuously running agaiteocks and eroding them.These also carry sand from one place to other.

b) water :-
water is influence the formation of soil in two ways ;-
It gets into the cracks in the rocks formed due to uneven heating of diferent parts of the rocks by the sun. On freezing the water expands in rocks .
Flowing water wears away eve hard rocks over long period of time. Fast flowing water generally carries various sized particles of rocks down stream on the away these moving rock particles rubagainst other rocks.
The resultant abrasion forms still smaller particles.The water takes these particles of rocks and deposits them down it's path.In this way soil is formed in places for away from its parent rock.
c)Sun :-
Under the influence of solar radiation the rocks,heat up and expand.At night there cool down and contract.Since all parts of the rocks do not expand and contract at the same rate ,cracks appear in the rocks and ultimately the large rocks break up into smaller pieces.