Household Wastes

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Biodegradable substances are materials that can be broken down by biological processes like bacteria and fungi. Examples include vegetable peels, food waste, paper, and cotton cloth. These substances …

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Non-biodegradable substances are materials that cannot be broken down by biological processes. They persist in the environment for very long periods. Examples include plastic bottles, glass, metals, a…

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1. Kitchen waste (vegetable peels, fruit skins) 2. Spoilt food and leftovers 3. Used tea leaves and coffee grounds 4. Paper and cardboard 5. Cotton cloth and natural fiber materials These materials de…

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1. Plastic bottles and containers 2. Glass bottles and jars 3. Metal cans and foils 4. Medicine bottles and strips 5. Polythene bags and synthetic materials These materials do not decompose naturally …

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Waste segregation is important because: 1. It makes recycling easier and more efficient 2. Prevents contamination of biodegradable waste 3. Reduces environmental pollution 4. Helps in proper disposal …

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When biodegradable waste is buried in soil for 15 days with adequate moisture: 1. The materials start decomposing 2. They change their form and structure 3. Bacteria and fungi break them down 4. They …

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Non-biodegradable waste remains unchanged when buried in soil because: 1. They cannot be broken down by biological processes 2. They maintain their original form and structure 3. They persist in the e…

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Composting is the process of decomposing organic waste into nutrient-rich manure. Benefits include: 1. Converts kitchen waste into useful fertilizer 2. Reduces the amount of waste sent to landfills 3.