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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
"Affluent life style has a negative effect on the environment." Justify this statement with the help of an example.
Which of the following is the best method to dispose of biological wastes from hospitals?
(a) landfill
(b) recycling
(c) incineration
(d) composting
Multiple Choice Type:
The most rapidly increasing and much harmful waste today is
Give reason for the following :
Broken glass utensils are a kind of non-degradable waste.
Mention Whether the Following Statement is True (T) Or False (F).
Flyash is the gaseous waste of cement industry.
Give two-ecofriendly ways of treating kitchen wastes.
What things does waste contain?
Which kind of garbage is not converted into compost by the redworms?
List two classes into which garbage is classified.
