Which of the following best describes Earth's mantle?
A. metallic liquid
B. pure carbon
C. high-density rock
D. low-density rock
E. metallic solid
Answer: C
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Which of the following statements about Vauban, a suburb of Freiberg, Germany,is false?
a. A small minority of homeowner own cars b. Street parking is forbidden. c. Each home is within walking distance of trains going to and from surrounding areas. d. Most homes are single family homes. e. The town has a car-sharing club.
What is not a factor in the amount of light penetrating the ocean?
a. The angle at which the light approaches the Earth b. The surface turbulence of the ocean c. The amount of light absorbed by clouds d. The presence of ice or foam on the surface
Surface currents move water vertically which thoroughly mixes the uppermost 400 meters of the
ocean's surface. Indicate whether the statement is true or false.
The most important limiting factor in rocky intertidal communities is ________
A) food B) light C) nutrients D) predation E) space