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प्रश्न
The Biological/technical term for The process causing an undesirable change in the environment
उत्तर
Pollution
APPEARS IN
संबंधित प्रश्न
Following is a statement about pollution. Which type of pollution does it express?
Fog seems to be appearing in Delhi during day hours.
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 |
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.
Which one of the following is an example of pollutant?
What is the full form of 4 R's?
What is known as smog? What harm is done by smog especially in winter?
Name three gases emitted during burning of garbage.
What is soil pollution?
Give the difference between biodegradable and non- biodegradable pollutants.
land or soil pollution happens when toxic ______ change the natural balance in soil.
