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%.
<span>D. the angle of their slope is greater than 40 degrees.
</span>Oversteepened slopes often lead to mass movements because <span>the angle of their slope is greater than 40 degrees. </span>
NOT: A. the angle of their slope is between 50 and 60 degrees. <span>B. plants cannot grow on them. </span> <span>C. the angle of their slope is less than 50 degrees. </span>
Explanation: Chromatography involves solvent separation on a solid medium. Distillation takes advantage of differences in boiling points. Evaporation removes a liquid from a solution to leave a solid material. Filtration separates solids of different sizes.