Answer:
meisosis I don't rember how to spell it lol. But I believe that it is the answer
Explanation:
It would be the second option about 540 million years ago.
Answer: it is C.
Explanation:
Troposphere comes first in the atmosphere. Then it is stratosphere. Last, it is mesosphere.
A cold front does count as weather, if you're looking for more info on cold fronts and warm fronts visit the site below.
http://www.weatherquestions.com/What_are_fronts.htm