What is the origin of most abyssal plain sediments?
a. Deep-ocean basalt
b. Biological activity
c. New crust development
d. Erosion from the continent
ANS: D
The origin of most abyssal plain sediments is from the land and shallow waters. It is thought to be
transported by winds and turbidity currents. Information can be found in the section The Topography
of Deep-Ocean Basins Differs from That of the Continental Margins.
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Each of the major continents at the beginning of the Paleozoic had two major components. These were a(n) ____
A)trough and a range B)craton and a mobile belt C)immobile belt and a rift margin D)craton and a ocean basin E)volcano and a desert
Complete the concept map by selecting the correct responses from the lists provided. 
Complete the concept map by selecting the correct responses from number 3.
A. Faults B. Epicenters C. Coasts D. Plate boundaries
Compared to a younger cinder cone, an older cinder cone would have
A. darker lava color. B. more soil and plants. C. a more prominent central crater. D. All of these choices are correct.
In a 1945 meeting in San Francisco, the United Nations accepted a proposal to create __________ carved out of land in Palestine.
a Jewish state a Jewish settlement an Arab homeland the country of Jordan a Palestinian state