Which of the following statement(s) is/are correct? Statement 1: Fertilisers are natural sources of nitrogen, phosphorus and potassium. Statement 2: They are added to nutrient deficient soil.
With respect to the following statements, choose the correct option. (i) Food security depends on both, the availability of food and access to it. (ii) Mixed farming degrades the nutrient quality of the soil. (iii) Fertilisers are commercially produced plant nutrients.