Essay on
THOUGHT pollution
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Answers
Explanation:
Pollution
It is the introduction of substances (or energy) that cause adverse changes in the environment and living entities.
It need not always be caused by chemical substances such as particulates (like smoke and dust). Forms of energy such as sound, heat or light can also cause pollution. These substances that cause pollution are called pollutants.
Types of pollution
- Air Pollution
- Water Pollution
- Soil Pollution
- Noise Pollution
Effects
★ Global warming
★ Acid rain
★ Ozone depletion
★ Hazards to wildlife
★ Disruption of the ecosystem
★ Threats to marine life
★ Increases toxic chemicals (such as mercury) in water bodies
★ Loss of soil nutrients which renders the soil unfit for agriculture.
★ Impacts the natural flora and fauna residing in the soil
★ Degrades vegetation due to the increase of salinity of the soil
★ Toxic dust may cause few respiratory problems or even lung cancer too
★ Loss of hearing
★ Sleeping disorders
Harmful pollutants responsible for polluting the environment
• Nitrogen oxide
• Sulphur oxide
• Mercury
• Particulate matter
• Chlorofluorocarbon
• Volatile organic compounds
Different types of Pollutants
Primary Pollutants
- These are emitted directly from the sources such as volcanic eruptions, combustion of fossil fuel, etc. These include nitrogen oxide, sulphur oxide, etc.
Secondary Pollutants
- These are not directly emitted from the sources but are formed when primary pollutants react in the atmosphere. For eg., ozone.
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