Question

Oversteepened slopes often lead to mass movements because

Answer 1

The right answer is D.

The slopes are differentiated by the following criteria:

*The inclination;

*The orientation;

*The shape of the slope.

The slope can be measured by degrees or percentages. In the mountains, it is necessary to measure the inclination of a slope by degrees and not by percentages of inclination.

to make the conversion it is necessary to consider that a slope of 45 ° equals a slope of 100%.

Answer 2

D. the angle of their slope is greater than 40 degrees.

Oversteepened slopes often lead to mass movements because the angle of their slope is greater than 40 degrees.


NOT:
A. the angle of their slope is between 50 and 60 degrees. 
B. plants cannot grow on them. 
C. the angle of their slope is less than 50 degrees.