Question

Which scenario is LEAST likely to cause sedimentation?A - fast-moving river slowing down at bends in the riverB- a river increasing speed as it moves down a steep watershedC- storm surge from the coastline traveling inland at sea levelD- flood waters moving over their riverbanks during storms

Answer 1

Sedimentation is least likely to occur in a fast-moving river slowing down at bends in the river. Other scenarios like a river increasing speed down a steep watershed, storm surge traveling inland at sea level, and flood waters moving over riverbanks during storms are more likely to cause sedimentation.

Step-by-step explanation:

Sedimentation is least likely to occur in a fast-moving river slowing down at bends in the river. As the river slows down, the sediment particles have less energy and are more likely to settle at the bottom, causing sedimentation. In contrast, other scenarios like a river increasing speed down a steep watershed, storm surge traveling inland at sea level, and flood waters moving over riverbanks during storms are more likely to cause sedimentation due to the increased volume and velocity of water.

Answer 2

The scenario least likely to cause sedimentation is the one which wouldn´t allow sediments that are being transported by the water to accumulate. In this examples, the answer is a river increasing speed as it moves down a steep watershed. As the speed increases, the sediments are going to travel faster down the river so they won't accumulate. (option B)