Introduction Md.Arifuzzaman Assist. Teacher Haroa Shimulbari d.d Madrasah Jaldhaka,Nilphamari. Class:Nine Sub:English Unit Five:lesson-2 Time:45 mins Date:

Polluted water Dust and polythene

Pesticide Chemical material Urban areas Town areas Vehicles Bus,truck, car etc Words meaning

kitchen Air is being polluted by industrial smoke,old vehichles,kitchen and smoking. Smoking

Air pollution: When smoke,dust,chemical materials,exhaust mix with air is called air pollution. The way of reducing air pollution : Lessening use of motor vehicles Avoiding use of vehicles older than 20 years. Avoiding smoking Encouraging people to use CNG for motor cars etc.

Indivisual work: Write three causes of air pollution.

Industrial waste Water is being polluted by industrial water,waste and chemical materials. Chemical materialIndustrial water

Water pollution: when dust,chemical materials,industrial poisonous water mix with fresh water is called water pollution.

#what is air pollution? #What are the meanings of pollution,ocean,organic material etc. What is the causes of water pollution?

Home work 1. Why do we should use natural fertilizer instead of chemical fertilizer? 2.You have to prepare a summary of 100 words on the pollution

Thanks