Subject :NSO Class : Class 3
The diagrams below show the samples of sticky tapes that were left with their sticky surfaces exposed to air at different locations X, Y and Z in a school.
From the amount of dust stuck on the sticky surfaces, select the area which has the maximum level of air pollution.
A X
B Y
C Z
D Cannot be determined
hard to EXPLAIN my
Ans 1:
Class : Class 8
Thaneesha,its C
Ashmi Narkar
Ans 2:
Class : Class 7
Ans 3:
Class : Class 6
At most dust is stuck on the sticky surface of tape 'Y', it indicates that this tape was exposed to air at a location having the maximum level of air pollution. This prooves that the correct answer is option 'b'.
Ans 4:
Class : Class 8
Thaneesha,its C
Ashmi Narkar
Ans 5:
Class : Class 3
Ans 6:
Class : Class 6
Ans 7:
Class : Class 3
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