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प्रश्न
The question has four options. Choose the correct answer:
Which one is the most toxic?
विकल्प
Carbon
CO
CO2
SO2
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उत्तर
CO
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संबंधित प्रश्न
List some of the common wastes produced in mining operation and mention how these can be reused.
Match the items in Column I with as many times as possible in Column II.
|
Column I |
Column II |
|
1. Cow dung |
(i) Sugarcane |
|
2. Bagasse |
(ii) Raddiwalas |
|
3. Old newspapers |
(iii) Manure |
Which of the following is biodegradable waste?
Differentiate between biodegradable and non-biodegradable substances. Cite examples.
Correct the definition of certain terms given below by changing only one word.
Landfill: Garbage buried under water in an area.
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 |
What is meant by garbage?
List two classes into which garbage is classified.
