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Ans 1- exfoliation occurs when the water enters the rocks throught cracks and freezes this continuous process of freezing and melting of rocks peels of the outer layer which is called exfoliation
Oxidation - oxidation caused mostly through rain , when the oxidised water throught rain falls on the rocks the iron compounds of the rocks start oxidising
Ans 3- the causes of soil pollution are :-
1 - industrial waste
2 - factories
Ans 3- the impacts on agriculture by soil pollution are :-
1- soil pollution decreases the quality and productivity of the soil
2- soil pollution also affects Vegetable and fruits