Types of fronts include...

• A. Cold fronts, warm fronts, stationary fronts, and occluded fronts.
• B. Only cold fronts exist.
• C. Only warm fronts exist.
• D. Fronts have nothing to do with air masses.

Answer: (A)

Fronts are the boundaries between air masses that have different temperatures and humidity. The way these air masses interact creates several types: a cold front forms when a cold air mass moves in and lifts the warmer air sharply, often bringing thunderstorms and a quick temperature drop; a warm front forms when a warm air mass slides over retreating cold air, producing gradual clouding and light to moderate precipitation; a stationary front occurs when neither air mass advances significantly, leading to extended cloudiness and precipitation over a wide area; an occluded front forms when a faster-moving cold front overtakes a warm front, lifting the warm air aloft and changing the weather pattern. Because front types come from how air masses meet and interact, there isn’t just one type, and fronts are inherently connected to air masses.