The answer is Cold Front, Warm Front, Occluded Front, and Stationary Front.
Cold Fronts: occurs when a cold air mass takes over a warm air mass, cold air is denser than warm air so the cold air mass causes the warm air mass to rise quickly, has a steep slope, causes cumulus...
A Cold Front, Warm Front, Stationary Front, and Occluded Front.
Carbohydrates,lipids,nucleic acids, proteins