The B soil horizon is also known as
A. topsoil.
B. the zone of leaching or zone of loss.
C. bedrock.
D. the zone of accumulation or zone of gain.
Answer: D
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Most oceanic islands and seamounts are
A. small pieces rifted apart from continents. B. places where the seafloor has been buckled upward by convergence. C. large fan-shaped mounds deposited by turbidity currents. D. constructed by volcanic eruptions that first occur under water.
The June solstice marks the beginning of the Southern Hemisphere's winter
Indicate whether the statement is true or false
Wireless technologies have enable more developed countries to "leap-frog."
Indicate whether the statement is true or false
A great example of a trace fossil would be the impression left by a crawling trilobite, an extinct arthropod
a. True b. False