The precipitation associated with a warm front typically arrives ________ the actual frontal boundary.
A)considerably ahead of
B)considerably behind
C)at about the same time as
D)none of these

Question

Quizplus · Accepted Answer

Warm fronts often have a gentle sloping front where warm air is gradually replacing a retreating cold air mass. Warm air, being less dense than cold air, rises over the colder air and cools, causing any moisture in the air to condense into clouds. As the warm air continues to move forward, the clouds and associated precipitation often arrive ahead of the actual frontal boundary.

The Precipitation Associated with a Warm Front Typically Arrives ________