Question

Which of these set of substances are environment friendly?

• A. Urea, cow dung, fertilizer
• B. Vermicompost, poultry wastes, green manure
• C. Fertilizer, green manure, goat droppings
• D. Bone meal, fish manure, phosphate fertilizer

Answer 1

The correct option is B Vermicompost, poultry wastes, green manure

Organic manures are of plant or animal origin. They are not synthetic chemicals. Excessive use of chemical fertilizers lead to problems such as saline soil and barren lands. It also causes pollution of underground water. Hence the use of organic manures is recommended as it increases the fertility of soil naturally. Cow dung, vermicompost, bone meal, goat droppings, poultry wastes, green manure are few examples of organic manures. NPK fertilizers, phosphate fertilizers, urea are few examples of chemical fertilizers.