Explain the role of air pressure, air masses and weather fronts in the formation of meteorological events such as thunderstorms, tornadoes or hurricanes. Use quotes from the article to support your explanation. Use the pictures to support your descriptions, explanations and predictions.

The best I have is that the cold air is at the bottom and the warm air is at the top.

a axis of a graph is a color or shade so we can all go outside and have a party so we can eat   some grilled cheese sammiches and broccoli and have some ugly fun times

i don't know why i put this, i know its not the i was just bored : p

delete this answer while you can

c is the answer to this question. altitude affects the weather because air molecules evaporate.