S-1

S-1 WELCOME

S-2

S-3

S-4

S-5

Here we see an English teacher reading the text book and trying to make understand the students . S-6

S-7

vocabulary detergent Clog up climatologist = scientist on clitomatalogy ( জলবায়ুববদ ) pollutant = washing (ধলাই- সাবান) = Block (আটকা পরা ) wilderness catastrophe = tragedy ( ষবপর্যয় ) =forest (বনায়ন ) = waste /filth ( দূষিত বস্তু ) S-8

1 By 2 S-9

How it occurs S-10

Chemical reaction of breaking of ozone S-11

Main causes of green house effect S-12

PAIR WORK a.What are the causes of green house effect ? b. Name any two of them and set example ? S-13

Smog = smoke and fog S-14

S-15 Result of Green house effect

Pair work A . How green house effect affects us ? B . Set two examples that affect our life greatly?

Effect of green house effect on Bangladesh S 16

Evaluation a.What are the effects of the green house effect ? b.Name any three of them and try to set examples ? S 17

Home work a.What do you understand by Global worming ? b. How is deforestation connected to the green house effect ? S-18

THANKS S-19

S-1

S-1

Presentation Transcript

S-1

Fig. S-1

S-1

S + 1

S: 1

S-1

S 1

S 1

s 1

S 1

S-1

S-1

1’s 20 0’s

Background #1 S 1

for s= 1

S 1

S-1