What are characteristics of a moist, unstable air mass?
Why →
A moist, unstable air mass is characterized by turbulence (from convective activity) and showery precipitation (cumuliform clouds producing rain showers or thunderstorms). Unstable air rises, cools, and condenses rapidly. Producing vertical cloud development (cumulus and cumulonimbus).The trap →
Poor visibility and smooth air (Choice B) describe stable air, which suppresses vertical development and traps pollutants near the surface. Haze and smoke (Choice C) are also stable air characteristics. Unstable = turbulent + showery. Stable = smooth + hazy.SOURCE → PHAK Chapter 12, FAA UAG Sample Question 37CHECKED APR 21ACS III.A.K1MED