Question

1. which weather pattern is characterized by a low-pressure system containing cold air?

a. polar vortex
b. tropical cyclone
c. sea breeze
d. heatwave

Explanation:

• A polar vortex is a large area of low pressure and cold air, typically around the polar regions.
• A tropical cyclone (like hurricanes) is a low - pressure system but with warm, moist air from tropical oceans.
• A sea breeze is a local wind pattern due to temperature differences between land and sea, not a low - pressure system with cold air.
• A heatwave is a period of hot weather, associated with high pressure, not low pressure with cold air. So the correct option is a.

Answer:

a. Polar vortex