Question

seminar on evaporation,boiling

Answer 1

Once upon a time, there was a kid named Danny. He was a cute little toddler, and although he didn’t complain about where you would sit him down, his favorite place was the floor – especially the floor that had just been wiped clean with a wet mop. He would cackle to himself when he felt the pleasant coolness of the wet floor on his skin. However, after a little while, the floor would become dry, just as before, as though it had never been wet at all! Danny didn’t like that change – not one bit!