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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
उत्तर
microorganisms
APPEARS IN
संबंधित प्रश्न
Which of the following is the best method to dispose of biological wastes from hospitals?
(a) landfill
(b) recycling
(c) incineration
(d) composting
Give a reason for the following :
Why is municipal sewage is first separated into degradable and non-degradable wastes?
Mention Whether the Following Statement is True (T) Or False (F).
Flyash is the gaseous waste of cement industry.
The question has four options. Choose the correct answer:
Which one is the most toxic?
What happens when
Insecticides, motor oil, paints are poured down the drain.
Answer the following question in one or two words or sentences:
Who, out of the following should properly dispose of the garbage – father, mother, elder brother, younger sister?
What is meant by garbage?
List two classes into which garbage is classified.
Give two examples of Biodegradable wastes.
