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Subject :NSO    Class : Class 4

Select the INCORRECT statement from the following.

A The dark coloured humus found in deep layers of soil, makes soil fertile.
B Afforestation protects the soil from erosion.
C Organic manures are less harmful than chemical fertilisers.
D Overgrazing is one of the causes of soil erosion.

answer c correct

Ans 1:

Class : Class 4
I don't know

Ans 2:

Class : Class 5
Answer will be A). It is because, humus is found on topsoil and not in deep layers of soil.

Ans 3:

Class : Class 4
c correct

Ans 4:

Class : Class 4

Ans 5:

Class : Class 4

Ans 6:

Class : Class 4

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