Question
Which of these set of substances are environment friendly?
Answer: Option B
:
B
Organic manures areof 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 causespollution of underground water. Hence the use of organic manures is recommended as it increases thefertility 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.
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:
B
Organic manures areof 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 causespollution of underground water. Hence the use of organic manures is recommended as it increases thefertility 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.
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