Which statement is true with regard to breakwaters?
A) Beach sand is eroded on the downstream side of the breakwater.
B) Breakwaters interrupt the progress of waves to the beach.
C) Breakwaters strengthen longshore currents.
D) Breakwaters are often built to provide nesting habitat for shore birds.
B
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Which statement is false?
A. CFCs are persistent chemicals. B. Ozone depletion is worst in Antarctica. C. CFCs substitutes have been found. D. Ozone thinning levels remain steady over seasons. E. CFCs contribute to global warming.
The scientific study of caverns is specifically called:
a. geomorphology. b. mass wasting. c. speleology. d. aerating. e. karstology.
Tower karst is most common in:
a. high latitudes. b. humid midlatitudes. c. humid tropics. d. caverns. e. tropical deserts.
The speed of a shallow water wave is computed using ________.
A. C2 = gL/2? B. C = L × T C. C = LT/g D. C = the square root of gD E. C2 = L/T