3. Colliding air masses can form a weather front. Which of the following is not a type of front:

A Stationary Front ***
B Storm Front
C Cold Front
D Occluded Front

B. Storm fronts

thanks

To determine which of the options is not a type of front, we should explore the different types of weather fronts first.

A weather front is a boundary between two different air masses that have distinct properties (temperature, moisture, and density). When these air masses collide, they create various types of weather fronts.

Let's go through each option to determine which one is not a type of front:

A) Stationary Front: A stationary front occurs when two air masses meet and neither air mass has enough force to displace the other. They remain "stationary" in their positions. Stationary fronts can result in cloudy skies and precipitation but generally bring less severe weather than other fronts.

B) Storm Front: A storm front is not a specific weather front type, but rather a general term referring to any front associated with significant weather disturbances. Storm fronts can be associated with any of the different types of fronts (cold, warm, or occluded fronts).

C) Cold Front: A cold front occurs when a cold air mass advances and replaces a region previously occupied by warmer air. Cold fronts are typically characterized by a zone of rapidly rising, moist air, which can lead to the formation of cumulonimbus clouds and potentially severe thunderstorms.

D) Occluded Front: An occluded front forms when a cold front overtakes a warm front. As the colder air mass catches up to a warm air mass, it lifts the warm air, creating a wide variety of weather conditions, including rain, snow, and sometimes severe storms.

Based on the explanations above, the answer is:

A) Stationary Front

This is because stationary fronts are indeed a type of weather front, so it is not the correct answer.