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प्रश्न
The question has four options. Choose the correct answer:
Sewage water is purified by
विकल्प
microorganisms
light
fishes
aquatic plants
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उत्तर
microorganisms
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संबंधित प्रश्न
Give a method for the disposal of household wastes such as left-over food, fruit and vegetable peels, and leaves of potted plants.
Give reason for the following :
Broken glass utensils are a kind of non-degradable waste.
Give a reason for the following :
Landfills are coming up fast near large cities.
What are the most important steps in waste management?
The question has four options. Choose the correct answer:
Composting is carried out from
Choose the correct option:
Landfill are is a/an:
List waste products produced from an industry.
Which of the following is biodegradable?
One of the best solutions to get rid of non-biodegradable wastes is ______.
