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प्रश्न
The question has four options. Choose the correct answer:
A huge quantity of sewage is dumped in a river. The BOD will
विकल्प
increase
decrease
slightly decrease
remain unchanged
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उत्तर
increase
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संबंधित प्रश्न
Give any two ways in which non-biodegradable substances would affect the environment.
How can the wastes such as paper, plastic and metal objects be disposed of?
Write note.
Plastic waste
Identify biodegradable waste from the following:
peels of vegetables and fruits, metallic cans, broken plastic toys, broken glass cover, grass, paper, ball point pen refill
Define electronic waste and list at least six items which come under this category.
Mention whether the following statement is true (T) or False (F).
Some of the electronic wastes may contain valuable metals such as copper.
The question has four options. Choose the correct answer:
Which one is the most toxic?
To what use can you put the following kind of garbage and how?
Rotting smelly garbage
Which of the following is non-biodegradable?
