Question

question 1 (20 points) saved
listen
the sum of all the underlying causes can push a slope to the brink of failure, and then an immediate cause may trigger the movement. the immediate causes for mass movements include _________
heavy rains
all of these choices are correct.
earthquakes
thawing of frozen ground

Explanation:

Heavy rains add water weight and reduce soil cohesion. Earthquakes create seismic forces that destabilize slopes. Thawing of frozen ground changes soil properties. All these can be immediate triggers for mass movements.

Answer:

B. All of these choices are correct.