Question

plz answer this question fast
Q.2

Answer 1

1. first answer I don't know I know only second

Water pipes burst because the water inside them expands is it gets close to freezing, and this causes an increase in pressure inside the pipe. When the pressure gets too high for the pipe to contain, it ruptures.

when you see this you get your answer

Answer 2

water is the only thing which expands on freezing,as other things shrinks on freezing.