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प्रश्न
How could warm water act as a pollutant?
उत्तर
Warm water is released by a factory into a nearby river or pond raises the temperature of the water, sometimes enough to harm the living things there.
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संबंधित प्रश्न
Do you know of any activity which may be polluting this water source?
Classify the given sources of water pollution as natural and manmade:
(1) domestic waste
(2) dead animals
(3) oil spills
(4) ashes released due to forest fires
Study the picture given below and answer the following questions :
Water pollution
List the cause of water pollution.
Water in the sea is sweet.
Usage of chemical pesticides and fertilisers causes ________ pollution.
How can we reduce water pollution?
Phosphate containing fertilisers cause water pollution. Addition of such compounds in water bodies causes:
(i) enhanced growth of algae.
(ii) decrease in amount of dissolved oxygen in water.
(iii) deposition of calcium phosphate.
(iv) increase in fish population.
What could be the harmful effects of improper management of industrial and domestic solid waste in a city?
Industrial wastes mainly consist of chemical pollutants.
