A topographic region that is characterized by local relief of more than 600 m (2,000 ft) is a
A) high tableland. B) depression. C) mountain D) low tableland.
C
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Tectonic plates move about as fast as ________
A) a child crawls B) a river flows C) a snail crawls D) grass grows in the summer E) your fingernails grow
The potential for developing hydroelectric power potential is best in mountainous regions and large river valleys.
Answer the following statement true (T) or false (F)
Explain the processes of wave refraction and longshore drift. What happens to sand as a result of these processes?
What will be an ideal response?
Why is upwelling such an important factor in creating areas of high biologic productivity?
a) Upwelling brings nutrient-rich deep water to the surface where productivity is limited by the availability of nutrients. b) Upwelling delivers oxygen-rich water to the surface where productivity is limited by oxygen content in the water. c) Upwelling brings cool deep waters to the surface where productivity is limited by high temperature. d) Upwelling brings new phytoplankton to the surface where they can multiply rapidly. e) Upwelling causes rain, which results in less salty surface waters that are better suited for primary productivity.