The answer to your question is carbon dioxide
Explanation:
A warm front is indicated on the line by red semi-circles pointing away from the warmer air and pointing in the direction towards which the warm air is moving. Along sections of the polar front, cold and warm air masses may move differentially with for one another.
Well it is important to know the geography of all places but u might want to so u know the language, traditions, and where is where if u r visiting.
