While following an Ekman spiral, ocean currents will have turned about this many degrees upon reaching a depth of approximately 100 meters: ________
What will be an ideal response?
Answer: 180
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Which of the following is not true of calderas?
A) They are produced by removal of easily eroded pyroclastic materials.
B) They commonly contain layers of volcanic ash and volcanic domes.
C) They are bounded by steep topographic scarps with a generally basin-shaped outline.
D) They form from the collapse of the ground surface into an emptied magma chamber below.
The zone of saturation is also commonly referred to as
A. aphreatic zone. B. aeration zone. C. phreatic zone. D. vadose zone.
Why is the economy of the Atlantic Periphery considered dependent?
A) The economy of the region is mostly dependent on natural resources and primary economic activity B) The economy of the region is relatively weaker than those of nearby regions C) The economy of the region is dependent on migrant labor from nearby regions D) Both A and B
Satellites use microwave beams to measure sea level to an accuracy of four ________
A) centimeters B) millimeters C) decimeters D) meters E) kilometers