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
Striking examples where high surface area releases heat.
The uterus. Cutaway view shows regions of the uterus and cervix and its relationship to the uterine
The Structure of an Old High-Mass Star
The Movius line separates regions of the world where Acheulean hand axes were made from regions wher
Examples of Body Regions and Their Location
Air-Mass Source Regions for North America