In this figure of Japan, the offshore trenches indicate
A) continental rifting.
B) a rift in a midocean ridge formed by seafloor spreading.
C) a rift in a midocean ridge formed by transform faulting.
D) subduction of oceanic crust.
D) subduction of oceanic crust.
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When the Kelvin wave hits the coast of South America,
A) the thermocline is at a much more shallow level as cold water is concentrated at the surface. B) the thermocline is found much deeper as warm water is concentrated at depth. C) the thermocline is at a much more shallow level as warm water is concentrated at depth. D) the thermocline is at a much more shallow level as cold water is concentrated at depth.
Why does the book say there are “two” ozone problems?
a) Because there are two sources of the gas implicated in thinning the ozone layer. b) Because there are two kinds of gases implicated in thinning the ozone layer. c) Because there is a thinning of the upper atmosphere ozone layer and increasing ozone at ground level that produces photo-chemical smog. d) Because ozone holes occur in two places above the earth, over the north and south poles.
Of the following models, which is used primarily for short-range forecasting?
A) MRF B) AVN C) Eta D) ECMWF E) RUC
Which of the following is not true of prairies?
a. Winds blow almost continuously. b. Evaporation is rapid. c. Fires in summer and fall are common. d. Prairies are typical of coastal regions of continents. e. Tree growth is hindered by fires and wind.