The mT air masses pictured here originate

Question

Quizplus · Accepted Answer

The mT air masses pictured here originate over water, as indicated by the blue color in the image. They are also unstable, as indicated by the wavy lines and mixing of colors. According to the commonly used air mass classification system, mT stands for maritime tropical, which means warm and humid air from the ocean. Thus, these air masses bring warm air during the winter, especially to coastal regions. Therefore, option B is the correct choice.

The MT Air Masses Pictured Here Originate