Which precipitation mechanism takes place when a warmer air mass rises after encountering a colder, denser air mass?
a. convectional precipitation
b. frontal precipitation
c. cyclonic (or convergence) precipitation
d. orographic precipitation
e. radiation precipitation
b
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Ali Farka Touré, known as the Bluesman of Africa, hailed from which nation in Africa?
A) Senegal B) Mali C) Ghana D) Burkina Faso E) Nigeria
Reconstruction of Paleozoic paleogeography is well documented by magnetic stripe data from rocks 600 to 250
million years old on the ocean floor. a. True b. False
The demand for seafood, although high, has not changed much since 1980
a. True b. False Indicate whether the statement is true or false
As a rule, desert nights are:
a. warmer than those of humid climates of the same latitude. b. only slightly different in temperature from desert days. c. cloudier than the days, creating a marked "greenhouse effect" to slow down outward radiation. d. significantly lower in temperature than desert days.