Air Pollution| Sources, Causes, Effects| Primary and Secoundary Pollutants|Hindi/Urdu
Air pollution
Air pollution is define as physical, chemical or biological changes in air.
Air Pollutants
The substances that are released into air and causes adverse effect on living and non living things are known as Air Pollutant.
1. Primary pollutants.
2. Secondary pollutants.
• Sources of Air pollution:
1. Point sources/Non- point sources.
2. Natural sources/Artificial sources.
• Effects.
• Control
#conceptsofbotany #airpollution #secoundarypollutants #airpollutants #acidrain