400
Correctly match each description with the type of weather event.
a. a large, swirling, low-pressure system that forms over the warm Atlantic Ocean.
b. a winter storm with winds of at least 56km/h, low temperatures, and low visibility for at least 3 hours.
c. a violently rotating column of air in contact with the ground.
d. a boundary between two air masses of different density, moisture, or temperature.
What is a hurricane, a blizzard, a tornado, and a front?