Distinguish between biodegradable and non-biodegradable wastes.
Biodegradable substances are substances or materials that completely break down and decompose into natural elements in a short period of time after disposal.
Examples of Biodegradable materials are plant products, wood, paper, food waste, leaves, and remnants from the death of living creatures.
Non-biodegradable substances are substances or materials that do not break down completely or don't decompose naturally into simpler form to mix with the environment.
Examples of non-biodegradable materials are cans, metals, and chemicals used for agricultural and industrial purposes.
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- (a) What is meant by biodegradable waste materials? Give two examples of biodegradable wastes.(b) Which of the following materials are non-biodegradable?Aluminium wire, Tea leaves, Synthetic fibre, Wool
- (a) Describe an activity to show that while paper is biodegradable but plastic (say, polythene) is non-biodegradable.(b) Explain why, some materials are biodegradable but some are non-biodegradable.
- State whether plastic is biodegradable or non-biodegradable? Give reasons for your Answer.
- Tin takes about 100 years to degenerate. Is it biodegradable or non-biodegradable ?
- Differentiate between biodegradable and non-biodegradable substances with the help of one example each. List two changes in habit that people must adapt to dispose non-biodegradable waste, for saving the environment.
- List the biodegradable and non-biodegradable waste products in your school. What are the best ways to get rid of this garbage?
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