High cirriform clouds are composed almost entirely of ice crystals. In tropical regions, air temperatures low enough to freeze all liquid water usually occur only above 6000 m (about 20,000 ft). In polar regions, however, these same temperatures may be found at altitudes as low as 3000 m (about 10,000 ft). Hence, while you may observe cirrus clouds at 3600 m (about 12,000 ft) over northern Alaska, you will not see them at that elevation above southern Florida.
a. True
b. False
Question 2
In Ralph Abercrombys and Hugo Hildebrandssons cloud classification system, each of the four primary cloud groups is identified by the type of precipitation it produces.
a. True
b. False
Convergence among tropical alpine plants: (a) Senecio trees on Mount Kilimanjaro, Africa
(a) With few ticks, moose retain a brown coat; (b) at high numbers of ticks, moose self-groom, destr
In some species, dominant females have more surviving offspring that mature earlier indicating an ad
Deconvolution fluorescence microscopy yields high-resolution optical sections th
Tropical rain forest "الغابات الاستوائية المطيرة"
Alpine tundra. Low-growing, hardy plants at a high altitude in Washington’s Cascade range.