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प्रश्न
Name the following :
One gaseous compound which depletes the ozone layer.
एक पंक्ति में उत्तर
उत्तर
CFC’s
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संबंधित प्रश्न
Identify the ODD term in each set and name the CATEGORY to which the remaining three belong :
Example : glucose, starch, cellulose, calcium
Odd term : calcium
Category : others are different types of carbohydrates
Polythene bag, Crop residue, Animal waste, Decaying vegetable.
Name the statistical study of the human population of a region.
Explain the Term: Pollution
True or False:
Indoor pollution is 10 times more toxic than outdoor pollution.
What are primary pollutants?
Why should we avoid soil pollution?
Give the difference between biodegradable and non- biodegradable pollutants.
With reference to pollution, explain the following:
Air pollution
Match the following:
| i. | Burning coal | a. | Land pollution |
| ii. | Throwing plastic | b. | Noise pollution |
| iii. | Wastewater from factories is mixed with river | c. | Air pollution |
| iv. | Louder horn of vehicle | d. | Water pollution |
How can we reduce land pollution?
