Most mass wasting is enhanced or promoted by:
a. erosion.
b. weathering.
c. flash floods.
d. wind erosion.
e. plate tectonics.
Q. 2 -
The most common triggering mechanism for mass wasting is:
a. vibrations due to earthquakes.
b. a sudden influx of excessive water.
c. erosion of the slope base.
d. vibrations due to earthquake and a sudden influx of excessive water.
e. vibrations due to earthquakes, a sudden influx of excessive water, and erosion of the slope
base.
Q. 3 -
Most major landslides:a.
are caused by earthquakes.
b. are caused by volcanic eruptions.
c. have natural causes.
d. are due to human activity and poor engineering.
e. none of the these
Q. 4 -
____________________ can be constructed to provide support to the base of a slope. They are
anchored into bedrock, backfilled with crushed rock, and provided with drain holes to prevent buildup
of water pressure in the hillside. Fill in the blank(s) with the appropriate word(s).
Q. 5 -
In the ____________________ method of protecting slopes, steps are cut into a hillside to reduce the
overall average slope and catch small landslides or rockfalls. Fill in the blank(s) with the appropriate word(s).
Quick Reply
