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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
Multiple Choice Type:
The most rapidly increasing and much harmful waste today is
Define electronic waste and list at least six items which come under this category.
Which of the following is biodegradable?
To what use can you put the following kind of garbage and how?
rotting smelly garbage
To what use can you put the following kind of garbage and how?
dry leaves collected in a garbage
To what use can you put the following kind of garbage and how?
old newspapers
Read the poem written below and then answer the questions from the information gathered from the book or elsewhere.
Name two items of waste each that need to be sent to a
(a) landfill,
(b) for composting.
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 |
What happens when
Tea leaves, cotton swabs and old soft toys are thrown into the drain.
Write one difference between biodegradable and non-biodegradable wastes. List two impacts of each type of the accumulated waste on environment if not disposed off properly.
