Question

Which among the following statement is incorrect about fertilizers? (i)A fertilizer is a salt or an organic compound. (ii) A fertilizer is obtained by the decomposition of animal wastes and plant residues. (iii) A fertilizer provide a lot of humus to the soil. (iv) Most of the fertilizers are soluble in water. a) (i) and (ii) b) (ii) and (iii) c) (iii) and (iv) d) (i) and (iv)

Answer 1

I guess the answer for this is D (i)&(iv)

Answer 2

Answer:

(B) (ii) and (iii)

Explanation:

The fertilizers can be either organic or inorganic. The answer is proposed by considering that in this case the fertilizers are inorganic.

1. Fertilizers are compounds which are obtained synthetically through inorganic compounds. Since the fertilizers aren't derived organically, they can't be obtained from the decomposition of animal waste and plant residues.
2. They are responsible for supplying the essential nutrients to the plants such as potassium and phosphorous. Since they are derived from inorganic compounds, they don't provide any humus to soil. Manure is responsible for providing humus to soil.

Therefore, the answer is B

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