Question

Which of the following situations would result in a broad, vegetated floodplain?

O Ameandering river carrying a high sediment load
O A braided river with an extensive network of channels
O A cascading river that has a network of tributaries feeding into it
O High velocity flow near the headwaters of a cascading river

Answer 1

A: A meandering river carrying a high sediment load

This would result in a broad, vegetated floodplain.

Explanation:

Meandering rivers flow over gentle sloping grounds. There are continuous curves or bends across the landscape. As the river flows, it erodes large amount of sediments (mostly alluvium) from the outer curve of each bend and deposits the sediments in its inner curve of the bank.

Floodplains are formed when the meandering river erodes these sediments while moving downstream. It is basically an area adjacent to the stream of meandering river. They act as a natural filter and removes excessive sediments and nutrients which could degrade water quality. Such lands are very fertile.

Answer 2

A meandering river carrying a high sediment load

Step-by-step explanation:

Meandering rivers that carry large sediment loads are perfect for the formation of large floodplains. Because they are slow-moving, flash floods are much less likely than in more energetic rivers.

Meandering rivers are also found very far downstream as the river nears its delta and therefore bring many nutrients to the floodplain found on either side of the course of the river.

When a river leaves a meander that breaks off to form an oxbow lake that eventually dries up, this landform can be turned into fertile farmland.