Answers

2016-04-09T13:34:27+05:30
The bottle is filled full of air, since the density of air is less than that of water, it bounces back and floats on the surface of water.
1 5 1
2016-04-09T13:34:58+05:30
Since density of air us less than water, it floats in the surface.
1 5 1