On a surface- level synoptic weather chart, a front is often identified by zones that exhibit:
A) gradual changes in pressure.
B) a strong jet stream.
C) abrupt changes in temperature, humidity, and wind direction.
D) clear skies.

Question

Quizplus · Accepted Answer

A front is a transition zone between two different air masses that have different temperature, pressure, and humidity characteristics. As a result, abrupt changes in temperature, humidity, and wind direction are typically observed along the front. These changes can be identified on a surface-level synoptic weather chart, which displays weather conditions over a large area at a given point in time. Gradual changes in pressure or the presence of a strong jet stream may be associated with weather systems such as high or low-pressure areas but are not necessarily indicative of a front. Clear skies can occur before or after a front but are not directly associated with it.

On a Surface- Level Synoptic Weather Chart, a Front Is