CBSE Class 10 Science 2015 Term II Outside Delhi Set 1

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Question : 18
Total: 36
Differentiate between biodegradable and non-biodegradable substances with the help of one example each. List two changes in habit that people must adopt to dispose non-biodegradable waste, for saving the environment.
Solution:  
 Biodegradable substance  Non-biodegradable substances
 Can be broken down into simpler substances by nature e.g., Vegetable peels.  Cannot be broken down into simpler substances by nature. e.g., Plastic or Glass.
Changes in habit:
(i) Use of separate dustbins for biodegradable and non-biodegradable waste.
(ii) Reusing of things such as polybags.
(iii) Recycle of waste.
(iv) Use of carry bags.
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