| 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
Correct Answer: B
Solution :
As most dust is stuck on the sticky surface of tape 'Y', it indicates that this tape was exposed to air at a location having maximum level of air pollution.
You need to login to perform this action.
You will be redirected in
3 sec
