Reclamation of Usar soil can be done by

Question

(a) addition of gypsum

(b) addition of compost

(c) blue green algal biofertilizer use

(d) addition of inorganic nitrogenous fertilizer

[A] (a) and (b) only

[B] (a), (b) and (d) only

[C] (a), (b) and (c) only

[D] (a) only

Answer & Explanation
Answer: (a), (b) and (c) only

Environmental Studies Short Question | Gkseries