Lifting actions may be provided by several factors except _____?
A. rising terrain
B. fronts
C. convection
D. crosswind
查看答案
Thunderstorms progress three definite stages which do not include _____?
A. cumulus
B. convection
C. mature
D. dissipating
_____may be embedded or obscured by massive cloud layers.
A. cumulonimbus
B. cumulus
C. droplet
D. ice
In the cumulus stage, a lifting action initiates the ________ movement of air.
A. vertical
B. horizontal
C. lateral
D. longitudinal
Precipitation creates a _______ motion in the surrounding air.
A. upward
B. downward
C. forward
D. backward