Explanation:
an air mass is a body of air with relatively constant temperature and moisture content over a significant altitude are message typically covered hundreds thousands or millions of square kilometres a front is the boundary at which two air masses of different temperature and moisture content meet
They grow distinct crystal shapes because they have a loot of room and their growth and movement is not restricted, which enables them to form in whichever way they can, which is why they are so distinct.
It is false because it has changed over the years.
Answer:
Only have 1 sorry
Made one of the largest immigration in history