Which shoreline protection feature is perpendicular to the shoreline?
A. groin
B. breakwater
C. seawall
Answer: A
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In the healthy environment of a sustainable soil,
A) the levels of humus steadily decline, but the aeration increases. B) sandy or silty soils are steadily converted to clay soils. C) abundant populations of bacteria are steadily replaced by mycorrhizae. D) the humus-forming processes of topsoil is renewed by the addition of detritus and humus.
Describe how both the Sahara desert at (30 degrees north latitude) and the Amazon rain forest (along the equator) are both products of the same process driven by Hadley cells.
What would be an ideal response?
Although coal burning contributes a very small amount, the high mercury levels in fish result from spills of mercury directly into the water.
Answer the following statement true (T) or false (F)
A sack of potatoes weighing 200 N falls from an airplane. As the velocity of fall increases, air resistance also increases. When air resistance equals 200 N, the sack's acceleration in meters per second squared is
A) 0. B) 5. C) 10. D) infinite. E) none of the above