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प्रश्न
The question has four options. Choose the correct answer:
Sewage is broken down in
विकल्प
primary treatment
secondary treatment
tertiary treatmen
all the above
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उत्तर
secondary treatment
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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.
Give any two ways in which non-biodegradable substances would affect the environment.
What is meant by incineration? for what purpose is it used?
The question has four options. Choose the correct answer:
Which one is the most toxic?
Correct the definition of certain terms given below by changing only one word.
Compost: Substances converted into manure for use in industries.
Write 3 sentences on what comes to your mind when you chance to see the following.
A rag picker
Some wastes are given below:
- Garden waste
- Ball point pen refills
- Empty medicine bottles made of glass
- Peels of fruits and vegetables
- Old cotton shirt
The non-biodegradable wastes among these are ______.
Give two examples of Non-biodegradable wastes.
