The most common Precambrian fossils are ________, layered mounds of calcium carbonate

A) trilobites B) chert C) stromatolites D) prokaryotes E) eukaryotes


C

Environmental & Atmospheric Sciences

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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.

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences

The belief in the existence of only one god is

A) animism. B) cosmogony. C) monotheism. D) polytheism. E) pagan.

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences