2. Pollution
The environment should be clean to live a healthy life.
The mixing of unwanted things into the environment is called environmental
pollution.
Types :
1. Air pollution
2. Water pollution
3. Land pollution
4. Sound pollution
3. Air Pollution
Air pollution is mixing of smoke and dust in the air.
Burning coal, smoke from vehicles etc. cause Air pollution.
Air pollution may cause diseases as cancer and asthma.
4. Water Pollution
Mixing of garbage and sewage in water sources is Water pollution.
Water pollution may cause diseases as Diarrhea, dysentery.
It affects the life of aquatic animals.
5. Land Pollution
Littering garbage on the ground is Land pollution.
It can harm the habitats of plants and animals.
Land Pollution affects growth of plants and crops.
6. Sound Pollution
Loud noise cause Sound Pollution.
It cause irritation to ears.
Sounds from vehicles, loudspeaker etc. cause Sound pollution.