| When cold front passes over an area then |
| 1. Temperature decreases. |
| 2. Relative humidity increases. |
| 3. Sky becomes clear. |
| Select the correct answer using the codes given below. |
A) 1 only
B) 1 and 2 only
C) 1 and 3 only
D) 8 1, 2 and 3
Correct Answer: C
Solution :
[c] Relative Humidity is the amount of water vapour present in air expressed as a percentage of the amount needed for saturation at the same temperature. It decreases when cold front passes over an area.
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