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प्रश्न
List two classes into which garbage is classified.
उत्तर
There are two types of garbage:
-
Biodegradable wastes: Substances that can be decomposed by the action of micro-organisms are called biodegradable substances.
e.g. Fruit and vegetable peels, cotton, jute, dung, paper etc. -
Non-biodegradable Wastes: Substances that cannot be decomposed by the action of micro-organisms are called non-biodegradable wastes.
e.g. Plastic, polythene, pesticides etc.
Most of the non-biodegradable wastes results from human activities.
संबंधित प्रश्न
List some of the common wastes produced in mining operation and mention how these can be reused.
What are the most important steps in waste management?
What are blue coloured bins used for?
Put a tick (√) against the garbage items given in Table 16.1 which could be converted into manure. Put a cross (×) against the others.
| Garbage Items | Make manure or not | |
| (i) | Eggshells | |
| (ii) | Straw | |
| (iii) | Dry flowers | |
| (iv) | Pebbles | |
| (v) | Broken pieces of glass | |
| (vi) | Nails and screws | |
| (vii) | Plastic bangles | |
| (viii) | Leftover food | |
| (ix) | Steel broken vessel | |
| (x) | Dead animals |
"The change in packaging has resulted in waste becoming non-biodegradable." Giving two examples from daily life, justify this statement.
Which of the following features relates to biodegradable substances?
Give two examples of Biodegradable wastes.
Define the following term:
Pollution
