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Answer variants:
Sanitary landfill
Segregation
Composting
1. Process of separation of different types of waste
materials - biodegradable and non-biodegradable wastes -
materials - biodegradable and non-biodegradable wastes -
2. Biodegradable matter of solid wastes is digested
or broken down by microbial action -
or broken down by microbial action -