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  3. Match the following

. Match the following

1. Gas which supports burning                                     A. Layer of air surrounding the earth
2. Weather cock                                                           B. Produced by burning of fuel
3. Atmosphere                                                              C. Shows the direction in which the air is moving.  
4. Smoke    D. Oxygen

(a) 1-C, 2-A, 3-D, 4-

(b) 1-B, 2-D, 3-A, 4-C

(c) 1-D, 2-C, 3-A, 4-B  

(d) 1-D, 2-C, 3-B, 4-A

Best Answer

(c) Oxygen is the gas of the atmosphere which supports combustion. Weather cock shows the direction in which the air is moving. Atmosphere is the layer of air that surrounds the earth and extends over thousands of kilometer above the earth’s surface.

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