A stream is cutting into a valley wall. Which of the following is the most likely trigger for a mass wasting event?
A) The stream will saturate the slope and generate a mudflow.
B) The stream erodes the toe of the slope, which results in the slope becoming oversteepened.
C) Upslope trees will be removed, reducing slope strength.
D) The stream will deposit extra sediment on the slope, increasing the weight on the slope.
Answer: B
You might also like to view...
In which of these countries/places is soil erosion not a concern?
A. Greenland B. United States C. Canada D. Australia
Volcanoes with alternate layers of lava and pyroclasts (ash and solid materials) are called:
a) Shield volcanoes b) Stratovolcanoes (or composite volcanoes) c) Cinder cones (or scoria cones) d) Mud volcanoes e) Lava domes
On a global scale, grasslands tend to be found:
a. in continental interiors where most rainfall occurs in summer. b. in continental interiors where most rainfall is evenly distributed throughout the year. c. on coastlines with excessive orographic precipitation. d. anywhere on a continent as long as most rainfall occurs in summer.
Along which tectonic boundary are deep-ocean trenches found?
A) Convergent B) Divergent C) Transform