Question

Oversteepened slopes often lead to mass movements because

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

Answer 1

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.

Answer 2

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%.