1. WELCOME TO ENGLISH CLASS

2. INTRODUCED : TEACHER’S INTRODUCD:- Md. Abdus Salam. Assistant Teacher (English). PATNITOLA HIGH SCHOOL. PATNITOLA, NAOGAON. BY TEXT INTRODUCED:- Class Nine. English – First Paper. Unite- Five. Lesson- Two. Time : 45 Minutes.

3. DECLERATION TOPIC’S :- Air Pollution. Water Pollution. Soil Pollution. TODAY’S TOPICS IS ENVIRONMENTAL POLLUTION.

4. OUT COME FROM LEARNING :- 1. The definition of Air pollution. 2. Reason of air pollution. 3. Way of making air pollution less comparable to traditional system. 1. The definition of water pollution. 2. Reason of water pollution. 3.Way of making water pollution less comparable to traditional system. 1. The definition of soil pollution. 2. Reason of soil pollution. 3.Way of making soil pollution less comparable to traditional system. Student will able to tell:

5. Air pollution comes from variety of sources. In Bangladesh poisonous exhaust from industrial plants, brick kilns, old or poorly-serviced vehicles and dust from roads and construction sites are some of the major sources of air pollution. Air is being polluted by burning bricks. Air is being polluted by old or poorly-serviced vehices. Air is polluted by dust from road and construction.

6. Water pollution can occur in ocean, river, lakes, ponds and underground reservoirs.As different water sources flow together, the pollution can spread easily and quickly.Causes of water pollution : * Increased sediment from soil *erosion *improper waste dieposal and littering *leakage of soil pollution into eater supplies *organic materials that decay in water supplies etc. Water is polluted by throwing various kinds of materials. Water is polluted by throwing industrial dirty things. Dirty materials are throwing into the bank of the river is one of the major cause of water pollution.

7. Among the most significant causes of soil pollution is the enormous volume of industrial Waste which is being produced every day but not disposed properly. The mismanagement of household wastes, particularly the polythene Shopping bag, has caused serious threat to the soil, and the drainage system. Deforestation, various kinds of erosion are also causes of pollution. Various kinds of domestic rubbish are over the soil. Polithin, scarp paper and different kind of things are on the soil. For deforestation is main cause of soil erosion.

8. We can reduce this type of pollution by making less use of motor vehicles and also have to clear roads. We can remove air pollution by using coil and gases in this way. By making new motor- car we can remove this kind of air pollution. THE WAY OF CONTROLING – AIR-POLLUTION.

9. As rain water is arsenic and bacteria free. So it is a save source of water. Filtering water is a save source of water. Underground water is a save source of water.If it is free from arsenic. THE WAY OF GETTING PURE WATER.

10. It is a symbol of save source of soil. After testing soil farmer is cultivating vegetables. Polithin,shopping bag and other materials are free from this soil. So it is a save source of soil. THE WAY OF GETTING PURE SOIL.

11. GROUP WORK: 1. What do you see in the picture ? 2. What are some of common sources of environmental pollution? 3.Which of these sources are most threatening for your environment ?

12. INDIVIDUAL WORK: Write a paragraph about ‘ Air pollution ‘. HOME WORK: Discribe various kinds of pollution.

13. THANKS