Climatologist define a "dry climate" as a climate in which ________
A) precipitation is blocked by high mountains B) less than 25 cm (10 in) of rain falls in a year
C) precipitation is less than expected evaporation D) All of the answers are correct.
C
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Which of these irrigation methods is most effective at reducing soil salinization?
A. drip B. gravity-flow C. center pivot, low pressure D. high pressure spraying
These clouds are not precipitating and covers the entire sky, forming a low blanket of clouds that causes overcast conditions. These are
A) stratus.
B) nimbostratus.
C) altostratus.
D) cirrostratus.
Which of the following techniques would be most effective in separating the components of salt water?
A) pouring the liquid off the solid B) evaporation C) filtration D) none of these
Why would sand be deposited behind a small island to form a spit or tombolo?
A) The tidal affects are trivial behind the island, so the sand is not swept away. B) Waves refract around the island and the wave energy is dissipated on the island, allowing quiescent water behind, and sand drift to accumulate behind the island. C) The onshore current from one direction piles up sand here. D) The island protects the coast from rip currents, preserving the sand.