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प्रश्न
Differentiate between chemical pollution and thermal pollution.
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उत्तर
(a)
Chemical pollution:
A large number of industrial chemicals which include chemicals from paint, textile & dyestuff industry & various acids & salt solutions enter into the water when discharged as industrial wastes.
Chemical pollutants include — Metallic salt solutions of mercury & lead which cause heavy devastation of marine & plant life.
Agricultural wastes include — Poisonous pesticides namely fungicides & insecticides which may also enter underground water through the soil.
(b)
Thermal pollution:
Certain industries such as the iron & steel industry & numerous chemical plants use large amounts of water for varied functions.
The discharged wastewater after going through technical processes is rendered hot & on entering streams of natural water enhances the growth of harmful biological organisms.
संबंधित प्रश्न
Give one example of A water pollutant.
Explain phenomenon of acid rain.
Answer the following question:
Name two human diseases caused due to water pollution.
Fill in the Blanks:
Sewage is the source of ______ pollution
Water is not necessary for our basic needs.
Give few steps to save water.
What are the pollutions caused by the objects given below?
- Loud Speaker
- Plastic
Write notes on the following:
Algal Bloom
Contamination of water bodies by human activities is called ______ pollution.
Define the following term:
Oil spills
