Question

give reason

1)Water droplets

appear on the outer surface of a tumbler containing ice cold water.

2) People prefer to wear cotton clothes in summer.

3) On a hot sunny day people sprinkle water on the roof or open ground

Answer 1

2)because cotton clothes are more good absorbent than any other fabric.its also comfortable to wear as it donot cause irritation on are skin . and keel us calm .

3) because it keeps the ground cool at night .

Answer 2

HEY USER ,
HERE IS YOUR ANSWER BuDDY :-

1) sometimes we see water droplets on the outer surface of a tumbler containing ice cold water because the water vapour presents in air , on coming in contact with the ice cold water loses energy and gets converted to liquid state , which we see as water droplets .

2) people prefer to wear cotton clothes and light - coloured clothes in summer because we sweat a lot in Summers and cotton is a good absorber of water . thus , it absorbs sweat from our body and exposes the sweat to the atmosphere making it's evaporation faster .

3) when water is sprinkled on the roof top or ground it evaporates because of the latent heat of vaporisation leaving behind a cool effect .
In case of ground , this evaporation causes cooling of the surrounding area after sometime ; whereas in case of roof top the room beneath is cooled .

HOPE it helPS YOU !!!!.…:-)