Question

What happens to the erosive power of a river as velocity increases?

Multiple choice question.
a) Erosion decreases.
b) Erosion increases.
c) Erosion is not related to velocity.

Answer 1

The erosive power of a river increases as its velocity increases. A higher velocity allows the river to carry larger sediments and exert a greater impact force on the river bank, causing more erosion.

Step-by-step explanation:

The erosive power of a river increases as its velocity increases. As the velocity of the river increases, it can carry larger and heavier sediments, leading to more erosion. Higher velocity can also increase the impact force of the water on the river bank, causing more erosion.

For example, when a river flows quickly, it can carve out deep canyons and gorges in the landscape. In contrast, when a river flows slowly, it may only be able to carry smaller sediments and have less erosive power.

Therefore, the correct answer is b) Erosion increases.