The United States has no reserves of
A. tin, bauxite and potash.
B. gold.
C. chromium, cobalt, manganese and nickel.
D. iron ore, lead and copper.
Answer: C
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When the wind speed is zero, the wind direction is
A) 0o B) 90 o C) 180 o D) 270 o E) undefined
________ refers to warm air at the surface being cut off by the meeting of two cold fronts
Fill in the blank(s) with the appropriate word(s).
Natural levees block yazoo streams from joining the main river on a flood plain
Indicate whether the statement is true or false
How do wind-generated waves develop and travel to shore?
a) Capillary waves—gravity waves—swell—breakers b) Gravity waves—swell—breakers—capillary waves c) Internal waves—external waves—fully developed sea—breakers d) External waves—sea—capillary waves—swell—breakers e) Orbital waves—progression waves—breakers