High clouds:
A) have a typical ceiling around 4500 meters.
B) are composed of ice crystals.
C) include altostratus clouds.
D) have a fairly large water content.
Question 2
Cirrostratus clouds:
A) are more likely to herald coming precipitation than are cirrocumulus clouds.
B) contain a mixture of ice crystals and supercooled water droplets.
C) are responsible for the halo effect.
D) are formed by wind shear.