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प्रश्न
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)
उत्तर
Across
1. Chlorofluorocarbon
3. Carbon monoxide
6. Pesticide
Down
2. Ozone
4. Oxygen
5. Cholera
7. Ganga
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संबंधित प्रश्न
Following is a statement about pollution. Which type of pollution does it express?
Crop does not grow up in some areas.
Following is a statement about pollution. Which type of pollution does it express?
People living in the busy squares face problems like short breathing and other respiratory problems.
What is pollution?
| Column 1 | Column 2 | ||
| 1 | SPM | a | Release of methane |
| 2 | Ozone hole | b | Add to greenhouse effect |
| 3 | Melting of polar ice | c | Affects oxygen transport by blood |
| 4 | Acid rain | d | Rise in sea level |
| 5 | Green house effect | e | Bronchitis & inflammation of the lungs |
| 6 | Melting of permafrost | f | Erosion of buildings |
| 7 | Carbon monoxide | g | Chlorofluorocarbons |
Name three gases emitted during burning of garbage.
What is soil pollution?
What is radioactive pollution?
Distinguish between the following :
Quantitative Pollutants and Qualitative Pollutants.
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.
Identify who am I?
I am the type of pollution caused by using too much chemical fertilizers and pesticides by farmers. I lower the quality of soil and even move chemicals into plant parts which are eaten by people. I am _____ pollution.
