Question

while researching a topic, a student has taken the following notes: • a u - shaped curve in a river channel is called a meander. • a meander forms when water erodes sediment from one side of the riverbank and redeposits that sediment on the opposite side. • meanders will gradually change shape and migrate downstream over time. • a river with high sinuosity has many meanders, and a river with low sinuosity has few. • the huallaga river in peru has high sinuosity. the student wants to describe how meanders are formed. which choice most effectively uses relevant information from the notes to accomplish this goal? a) over time, many meanders have formed in the huallaga river, a river in peru with high sinuosity. b) the u - shaped curves, or meanders, that form in a river will gradually change shape and migrate downstream. c) a high - sinuosity river, the huallaga river has many meanders that will change shape and shift downstream over time. d) over time, water erodes sediment from one side of a riverbank and redeposits it on the other, resulting in a u - shaped curve, or meander, in the river channel.

Explanation:

The goal is to describe how meanders are formed. Option D directly states that water eroding sediment from one side of a river - bank and redepositing it on the other results in a U - shaped curve (meander), which is the formation process. Options A, B, and C focus on characteristics of meanders or the Huallaga River rather than the formation process.

Answer:

D. Over time, water erodes sediment from one side of a riverbank and redeposits it on the other, resulting in a U - shaped curve, or meander, in the river channel.