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Name the various modes of waste disposal.
Give a reason for the following :
Why is municipal sewage is first separated into degradable and non-degradable wastes?
Give two-ecofriendly ways of treating kitchen wastes.
What are blue coloured bins used for?
Differentiate between biodegradable and non-biodegradable substances. Cite examples.
A garbage collector separate items mentioned below in the garbage into red, green and blue containers for their transfer to landfill, composting pit and recycling unit respectively.
Items:
- Plastic bags
- Newspaper and journals
- Screw and nuts
- Vegetable peels
- Metal chips
- Egg shells
Which items were transferred to which bin?
Correct the definition of certain terms given below by changing only one word.
Compost: Substances converted into manure for use in industries.
Provide a suitable term that expresses the meaning of the following statement.
Greeting cards made from newspaper.
