Answers

2016-03-04T10:01:16+05:30
We blow to warm things in winter or cold days because our body temperature is much warmer than outside one. example , while walking outside in cold days we blow over our hand and rub them.
We blow to cool hot items , because by this we are helping the water droplets to evaporate by using the heat of that item and leaving behind a much cool item.
example , we blow to cool hot tea or soup .
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