Exam 12: Coasts

What is the rate of shore erosion dependent upon?

How do sediments move along a beach?

Where are deltas common?

Which is a factor that determines the location of a coast?

Seawalls increase the amount of erosion along the shore because they deflect wave energy.

The beach scarp is at the low tide mark and signifies the beginning of the offshore zone.

Fringing reefs are separated from land by a lagoon.

Despite their instability, over 70 barrier islands off the United States have been commercially developed.

Salt wedge estuaries form their circulation pattern due to the rapid river outflow mixing with ocean water.

What are some of the causes of eustatic change to sea level? Include local possibilities of sea level change as well.

Which is not a dominate delta type?

Low-energy coastlines are commonly found in areas along eastern edges of continents.

What is a coastal cell?

Global glaciation events can create variations in local sea level changes.

Coasts refer to an entire area that is affected by biological processes in addition to tectonic activity.

What are some of the functions of an estuary? Can you hypothesize why it is important to save for animals? What about for humans?

How much of the United States coastline is considered to be depositional?

What function does a bay mouth bar provide?

Deltas are present at every river mouth that brings sediment to a broad continental shelf.

What creates a moraine?