Exam 12: Drainage Basins and Drainage Patterns

Erosion is a degrading process whereas deposition is an aggradating process.

Stream velocity is often measured for different subsections of a stream using a moveable current meter.

Which of the following is INCORRECTLY matched?

The portion of each meandering curve subject to the fastest water velocity undergoes the greatest erosive action.This action forms a steep

Floodplain formation occurs while a stream is downcutting rapidly.

Alluvial fans are formed as flowing water _______as it leaves a constricted channel.

Steep slopes and some relief generally produce which drainage pattern?

Which of the following lists of processes are in the CORRECT sequence from beginning to end?

Excess sediment may result in which of the following channel patterns?

The sediment load consisting of fine-grained clastic particles held aloft in the stream is the

A perennial stream can go months and even years between flow events.

The total possible load a stream can transport is its_______ ,whereas a streamʹs ability to move particles of specific size is its_______ .

A central peak,such as a volcanic mountain,generally produces a _______drainage pattern.

In most rivers in humid regions,discharge increases downstream.

When a river reaches a base level,its forward velocity rapidly decelerates as it enters a larger body of standing water and is _______formed.

Which of the following best describes the relationship of deforestation to sediment load?

A flood recurrence interval of 100 years means that floods of that size will occur only once every 100 years.

Only larger rivers and streams have their own drainage basins.

A 10-year flood has an annual exceedance probability of 10%.

In a straight channel,the greatest flow velocities are found along the bottom in the middle of the stream.