The competence of a mountain river is ________ than that of a river on a floodplain because ________.
A)lower;the gradient is greater
B)higher;the gradient is greater
C)lower;there are more boulders
D)higher;there is more water

Question

The competence of a mountain river is ________ than that of a river on a floodplain because ________.
A)lower;the gradient is greater
B)higher;the gradient is greater
C)lower;there are more boulders
D)higher;there is more water

Quizplus · Accepted Answer

The competence of a river refers to its ability to transport sediment, and a mountain river is typically steeper and has more energy, resulting in greater competence. The gradient, or steepness of the river, is a key factor in determining its competence. Therefore, option (A) is incorrect. The presence of boulders (option C) does not directly affect the competence of a river. Lastly, the amount of water (option D) affects the river's discharge, but not necessarily its competence.

The Competence of a Mountain River Is ________ Than That