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प्रश्न
Do you think it is better to use compost instead of chemical fertilizers? Why?
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उत्तर
Yes, it is better to use compost instead of chemical fertilizers. This is because compost is prepared from plant and animal wastes, therefore, it easily gets decomposed. It does not add any harmful chemicals to the soil, whereas an excessive use of chemical fertilizers causes soil and water pollution.
संबंधित प्रश्न
Give a reason for the following :
Landfills are coming up fast near large cities.
Give a reason for the following :
Why is municipal sewage is first separated into degradable and non-degradable wastes?
What is a landfill?
Observe the bins and waste material heaps and suggest what materials can be used for preparing handicrafts materials.
Read the items mentioned in Columns I and II and fill in the related process in the Column III
| Column I | Column II | Column III | |
| (a) | Organic waste | Earthworms | (i) ______ |
| (b) | Garbage | Dig pit and fill with garbage |
(ii) ______ |
| (c) | Old newspaper | Paper bags | (iii) ______ |
Correct the definition of certain terms given below by changing only one word.
Landfill: Garbage buried under water in an area.
Write 3 sentences on what comes to your mind when you chance to see the following.
Foul odour emanating from garbage at the entrance of your house.
"The change in packaging has resulted in waste becoming non-biodegradable." Giving two examples from daily life, justify this statement.
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.
