Which mass wasting process involved volcanically derived material from the eruption of Nevado del Ruiz and destroyed the city of Armero in 1985?
A) Lahar
B) Rockfall
C) Solifluction
D) Debris flow
Answer: A
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This water balance diagram below suggests that
A) the location is in the Southern Hemisphere.
B) winters are snowy.
C) long periods of drought are common.
D) All of these are correct.
Leaching of minerals from soils, especially calcium, magnesium, and potassium, can be increased when
A) the pH is lowered, especially from acid rain. B) salty irrigation water is used to flush out polluted soils. C) anti-microbial agents and nanoparticles contaminate soils. D) excess chemical fertilizer is used over many years.
Which of the following is not one of the major groups of terrestrial vegetation biogeographers often designate?
A) grassland B) forest C) savanna D) desert E) phytoplankton
This map shows elevations of the water table beneath an area. Which of the following maps is the correct contour map for the water table elevations shown?
A. A B. B C. C D. D