It is thought that submarine canyons on the continental slope have been generated by ________
A) a submarine glaciations
B) turbidity currents
C) streams when sea level was much lower than it is today
D) streams when sea level was much higher than it is today
B
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Which of the following statements is TRUE regarding the population pyramids for Uruguay and Guatemala?
A) Guatemala has a higher RNI and TFR than does Uruguay
B) Uruguay will have significant population growth in the coming decades
C) The population of Uruguay is generally younger than that of Guatemala
D) Uruguay has a higher rate of natural increase (RNI) than does Guatemala
E) Guatemala has a lower total fertility rate (TFR) than does Uruguay
Which of the following terms refers to the reversal of the positions of surface high- and low-pressure areas at the east and west ends of the Pacific Ocean?
A. upwelling B. La Niña C. El Niño D. Southern Oscillation
Which of the following factors characterizes the difference between an HP supercell and a LP supercell?
A. maximum hail diameter B. precipitation amount C. maximum wind gust D. the storm width
Which of the following beds would be easiest for a stream to erode?
A) Lined with gravel and cobbles B) Bedrock C) Lined with sand and gravel D) Lined with silt