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संबंधित प्रश्न
Why are some substances biodegradable and some non-biodegradable?
Write note.
Plastic waste
List some of the common wastes produced in mining operation and mention how these can be reused.
The question has four options. Choose the correct answer:
Sewage water is purified by
List the biodegradable and non-biodegradable waste products in your school What are the best ways to get rid of this garbage?
To what use can you put the following kind of garbage and how?
Old newspapers
Beera, a farmer would clear his field everyday, and burn dry leaves fallen on the ground. After sometime he found that those living in huts near his field were suffering from cough and breathing problems.
- Can you explain why?
- Also suggest an environment friendly way to dispose the dry leaves.
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) | Egg shells | |
| (ii) | Straw | |
| (iii) | Dry flowers | |
| (iv) | Pebbles | |
| (v) | Broken pieces of glass | |
| (vi) | Nails and screws | |
| (vii) | Plastic bangles | |
| (viii) | Left over food | |
| (ix) | Steel broken vessel | |
| (x) | Dead animals |
Answer the following question in one or two words or sentences:
Who, out of the following should properly dispose of the garbage – father, mother, elder brother, younger sister?
