Grade 5, Science Olympiad (CBSE) - Pollution 

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Grade 5  |   Science  |   Pollution, Environment, pollution and calamities, Olympiad, CBSE, ICSE, SOF, ITO


Types of pollutions:
A) Air pollution
B) Soil pollution
C) Water pollution
D) Noise pollution


Air pollution


  • Smoke from factories
  • Smoke emissions from vehicles
  • Smoke produced by burning waste materials


Air pollution can cause respiratory system diseases like Asthma. Air pollution is also harmful to eyes and vision.


Water Pollution


  • Chemical wastes from factories draining into river
  • Open defecation
  • Animals bathing in ponds


Water pollution can lead to diseases associated with digestive system like dysentery, diarrhea, cholera and polio.


Soil Pollution


  • usage of excessive pesticides by farmers.
  • excessive usages of non-biodegradable products.


Crops produced in the polluted soil will have less nutritional value and will be harmful to health.


Noise Pollution

Annoying, unpleasant and loud sounds cause noise pollution. They can have a negative impact on our health. e.g. Honking of horns.

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