Final answer:
An Arctic front is marked by a cold air mass and usually trails a low pressure system, resulting in cooler temperatures and weather changes such as precipitation.
Step-by-step explanation:
An Arctic front is associated with a cold air mass and typically follows behind a low pressure system, leading to colder temperatures and potential precipitation as it overtakes warmer air. The Arctic front is characterized by the clash of a cold polar air mass and a warmer air mass, which often results in a sharp decrease in temperature, increased wind speeds, and changes in weather patterns including the development of precipitation and clouds.