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SAI ANGAN

Class-3 SOCIAL SCIENCE
Name: Class/Sec: Date:

AIR AROUND US
What makes air dirty?

A. Answer the following questions:-
1. How does air get dirty?
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2. Which is more important, increasing people's standard of living, or protecting the

environment?
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3. Do you think cleaning and dusting of houses, roads can cause air pollution?
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B. Write true or false:-
1. We should breathe more carbon dioxide than oxygen-
2. CNG gases gives out smokes-
3. Plants produce more carbon dioxide than oxygen-

C. Solve the unscramble letters:-
1. SHICLESV-

2. ESUAC-
3. ANCLE-
4. ETHAERB-
D. Represent one diagrammatic representation of “air pollution”