Answer:
i can not help you with that sorry
Explanation:
As it gets colder, the molecules get less dense which causes it to get smaller.
Yes, wind can travel faster than the speed of sound. Wind is just the bulk movement of a mass of air through space and is in principle no different from a train speeding along or a comet zipping through space.
It is possible to be passed on because of their gentics.
I think the answer is c)groundwater pollution and soil fertility