avgeeks1and1Presents a simple and clear explanation of how and why changes in the weather occur. Locates the air masses which govern major weather changes in North America, and show what happens when these masses interact, forming cold fronts, warm fronts, and occluded fronts.
This film has been posted with permission by the copyright holder, Phoenix Learning Group. To use this footage from this film in your project, please contact us at footage@avgeeks.