Page 2 - GREENHOUSE EFFECT AND GLOBAL WARMING
P. 2

A) Ozone


               B) Methane


               C) Chlorofluorocarbon


               D) All the above


               4. By how much has the average temperature of the earth increased in

               the last 100 years?


                    0
               A) 1 C

                    0
               B) 1 F

                    0
               C) 2 C

                    0
               D) 2 F



               SUBJECTIVE QUESTIONS





               Q.1 Observe the picture and answer the
               following questions


               a) What do you mean by Green house
               effect?


               b) What are green house gases?


               c) How global warming is connected with
               green house effect?





               Q2. Give reason for the following:

                 i)     Greenhouse gases are responsible for global warming.

                 ii)    Global warming leads to melting of polar ice caps.
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