Exam 12: Drainage Basins and Drainage Patterns

Which of the following tends to occur when an area experiences tectonic uplift in its headwater region?

Discuss the concept of the graded stream.Do most streams approximate a graded stream? Why or why not?

Cone-shaped deposits of sediment often found at mouth of canyons in arid and semiarid climates are called

Define the following terms: drainage basis,drainage divide,interfluve,and valley.

The downstream portion of a river

This graph,showing the effects of urbanization on streamflow over time,is an example of a

The portion of each meandering curve subject to the slowest water velocity undergoes aggradation.This results in a(n)

Bed load is moved by

Stream transport involves all of the following EXCEPT

An oxbow lake is a former meander that has become isolated from the rest of the river.

The meaning of the terms ʺriverʺ and ʺstreamʺ sometimes overlap although,in general,a river is a large stream.

Which of the following is CORRECT of a floodplain?

A basin in which water leaves via evapotranspiration or subsurface gravitational flow instead of reaching the ocean is said to have

With no clear geometry and no true stream valley,this drainage pattern occurs in areas such as glaciated shield regions.

Which of the following is likely to occur if the gradient of a stream increases? (Assume that the discharge and sediment load remain unchanged.)

This tree-like drainage pattern efficiently moves water and sediment through its system due to minimization of the total length of each branch.

A streamʹs volume of flow per unit of time is its

A graded stream is one that has achieved a dynamic equilibrium between degradation and aggradation.

Faulted and jointed landscapes directs streams courses in patterns of right -angle turns forming this drainage pattern.

The science of water and its global circulation,distribution,and properties is known as