Because the evaporation is like a filter it leaves most things behind like bacteria or salt then when it comes down from the sky (or rain :P) it is safe to drink (NEVER DRINK WATER THAT IS DRIPPING OFF A ROOF!!!). but if air pollution gets into the cloud it could contaminate the vapor and turn it into acid rain which can do lots of damage.
There is 3 scalene truangles
the answer is true hopefully that helps you
Answer:
D) Migrating to another country.
Explanation:
The definition of the term being, "a person who moves to another country or area in order to find employment."