B,Water coolers are not effective on a rainy day.
Why?
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This is because in rainy day humidity is high so there is no requirement of water cooler.
As water cooler only rises humidity of an area.
Hope it helps you friend☺☺☺☺☺☺
As water cooler only rises humidity of an area.
Hope it helps you friend☺☺☺☺☺☺
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