A. increasing its surface area
B. decreasing its vapour pressure
C. increasing its temperature
D. decreasing its density
Correct Answer:
Option B – decreasing its vapour pressure
Explanation
if you blow-dry air over the glass you blow away this extra water vapor, thereby decreasing the amount of water vapor entering the glass.
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![an observer hears an echo 1.26 seconds after blowing a whistle near a cliff. calculate the distance of the observer from the cliff. [speed of sound in air = 330ms-1]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "an observer hears an echo 1.26 seconds after blowing a whistle near a cliff. calculate the distance of the observer from the cliff. [speed of sound in air = 330ms-1]")