Cumulus clouds that have undergone vertical development and have become cumulonimbus in form,indicate().
A、clearing weather
B、that a warm front has passed
C、probable thunderstorm activity
D、an approaching hurricane or typhoon
A、clearing weather
B、that a warm front has passed
C、probable thunderstorm activity
D、an approaching hurricane or typhoon
A、The persence of cirrus clouds B、The low-hanging stratus clouds C、The altocumulus clouds D、The massive cumulus clouds
A、The persence of cirrus clouds B、The low-hanging stratus clouds C、The altocumulus clouds D、The massive cumulus clouds
A、clearing weather B、that a warm front has passed C、probable thunderstorm activity D、an approaching hurricane or typhoon
A、darkening,growing in size and forming an anvil top B、that shows extensive vertical development C、creating cold downdrafts that are felt on the ground D、All of the above
A、Cumulus clouds lined up in rows extending in a northeast to southwest direction B、High altostratus clouds in the morning hours C、Cirrostratus clouds lined up in rows extending in a northeast to southwest direction D、Cirrostratus clouds lined up in rows extending in a north to south direction