The direction of movement of longshore currents is controlled by:
a. the direction of incoming waves
b. the position of rip currents
c. the bottom topography
d. the relative position headlands and bays
a
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Wind-blown deposits and _______ lakes are features of desert environments. Fill in the blank(s) with the appropriate word(s)
List four features that characterize the oceanic ridge system
What will be an ideal response?
Occasionally, a volcano will spew large amounts of fine volcanic dust into the high atmosphere. This dust can have the effect of ________.
A. causing unusual weather B. reducing the sunlight that reaches Earth's surface, suppressing photosynthetic processes C. reducing Earth's surface temperature D. damaging aircraft that fly through the dust E. All of the answers are correct.
As they travel on the open sea, tsunami ________
A) have very short wavelengths B) can be as tall as 30 meters (100 feet) C) become taller and taller D) are inconspicuous E) move at speeds of 5-10 kilometers per hour (3-6 miles per hour)