question_answer

Which one among the following is incorrect about fertilisers?

(i) A fertiliser is a salt or an organic compound.

(ii) A fertiliser is obtained by the decomposition of animal wastes and plant residues.

(iii) A fertiliser provide a lot of humus to the soil.

(iv) Most of the fertilisers are soluble in water.

A) (i) and (ii)                      

B) (ii) and (iii)

C) (iii) and (iv)                   

D) (i) and (iv)

E) None of these