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प्रश्न
Classify the following pollutions into natural and man-made categories.
Sewage, dust, pollen grains, chemical fertilizers, vehicular smoke, algae, pesticides, waste of animals and birds.
उत्तर
| Pollutant | Category |
| Sewage | Man-made |
| Dust | Natural |
| Pollen grains | Natural |
| Chemical fertilizers | Man-made |
| Vehicular smoke | Man-made |
| Algae | Natural |
| Pesticides | Man-made |
| Waste of animal and plants | Natural |
संबंधित प्रश्न
State any two harmful effects of noise pollution on human health.
Match the pairs from 'A' and 'B' columns and explain the effect of pollution on human health.
| Column 'A' | Column 'B' |
| 1. Water containing cobalt | a. Mental retardedness |
| 2. Methane gas | b. Paralysis |
| 3. Water containing lead | c. Inflammation of lungs. |
| 4. Sulphur dioxide | d. Skin cancer |
| 5. Nitrogen dixoide | e. Irritation of eyes |
What is pollution?
Name any three air pollutants and the sources of each of them
Give the definition of a pollutant.
Define water pollution
Distinguish between the following :
Quantitative Pollutants and Qualitative Pollutants.
Distinguish between the following :
Natural Pollution and Anthropogenic Pollution
Identify who am I?
I am the type of pollution caused by burning of fossil fuels like petrol or coal and the smoke of burning garbage. I float around and cause breathing problems. I am _______ pollution.
Complete the crossword puzzle with the help of clues given below :
Across
1. Pollutant which was used in refrigerators and air conditioners. (18)
3. Produced on incomplete combustion of fuels (14)
6. This chemical protects our crops and is washed into water bodies from the field. (9)
Down
2. This layer protects us from harmful ultraviolet rays. (5)
4. It is essential for combustion. (6)
5. Disease which is caused by drinking contaminated water. (7)
7. River which is famous in India and sustains most of the northern, central and eastern Indian population. (5)
