Since the Earth has density stratified layers, which layer would be the densest?
a. The outer core
b. The mantle
c. The inner core
d. The crust
ANS: C
Earth's densest layers are in the interior. The core substances should be denser than the rocks from the
deep drill holes. Information can be found in the section Earth's Interior Is Layered and Figure 3.5.
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What is the consensus that the Earth has a carrying capacity of 7 billion people (which is our current population)?
A. There is no consensus. B. Experts agree that we have exceeded the carrying capacity and face a dieback. C. Experts agree that continued economic growth can provide resources for tens of billions more. D. Experts agree that with 7 billion people, we are close to the carrying capacity.
Central place theory
A) states that cities and towns are surrounded by core areas. B) was formulated by Walter Christaller. C) asserts that market hinterlands must be of intermediate shape. D) asserts that the ideal shape for the market hinterland is the oval.
During a hurricane, which of the following is UNLIKELY to occur on a barrier island?
a) Increased longshore transport will erode much sand from the beaches. b) TV reporters will lean into the wind and rain on camera to appear heroic. c) Waves and storm surge will cover large parts of the island. d) Wave erosion will cut new passes through the island. e) There will be little change in size and shape to the island.
Mass movements in which material flows as a viscous fluid or displays plastic movement are termed
____________________. Fill in the blank(s) with the appropriate word(s).