The most common Precambrian fossils are ________, layered mounds of calcium carbonate
A) trilobites B) chert C) stromatolites D) prokaryotes E) eukaryotes
C
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The red dots that coincide with volcanically active island chains shown on the map are called
A) hot spots.
B) midocean ridges.
C) abyssal plains.
D) island arcs.
Oceanic and atmospheric circulation patterns _____ during the Mesozoic
A)did not change B)greatly accelerated C)greatly decelerated D)accelerated in the Northern Hemisphere only E)accelerated in the Southern Hemisphere only
The belief in the existence of only one god is
A) animism. B) cosmogony. C) monotheism. D) polytheism. E) pagan.
An air mass moves out of its source region. Two days later, the lower layers of the air mass are found to be warmer than they were originally. What letter should be added to the end of the air mass's classification code?
A) m B) k C) w D) c