Earth's climate, during the entire span of human civilization, has
A. been relatively very stable.
B. varied widely.
C. been warmer than during most of Earth's history.
D. been impossible to accurately measure.
Answer: A
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Which of the following represents a resilience mechanism?
A) Crown fires resulting from many years of fire suppression B) The emergence of a meadow in a recently burned forest C) Soil erosion resulting from burned soil washing away from a forest floor D) Burned trees accumulating on a forest floor after a fire
Freezing rain is associated with
A) microbursts. B) chinooks. C) Santa Ana winds. D) valley breezes. E) cold-air damming.
On barchan dunes, the "horns" point in the direction that the dune is moving
Indicate whether the statement is true or false
Where is one unlikely to find much alluvium deposited in a stream valley?
A) At the bottom of the thalweg B) In the center of the stream C) Along the stream sides D) In overflow areas E) In places where velocity increases