Coastal Geology (Grade 9)
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Coastal Geology
1.
The shape of the shoreline has only a small influence on the magnitude of the tides experienced at that location.
- True
- False
2.
Are barrier islands stable places to build homes and hotels?
- Yes, they are stable.
- No, they are not stable.
3.
An atoll would be an island formed by
- an underwater volcano.
- sediments deposited by a river.
- a coral reef.
- a projection from the mainland.
4.
A small ridge of sand or gravel just offshore from a beach is called a .
- dike
- bar
- moraine
- drumlin
5.
The main process that forms a beach is .
- weathering
- erosion
- deposition
- oxidation
6.
What is a narrow, sandy island, formed from a large bar, lying off the coast of the mainland?
- key
- islet
- barrier island
- atoll
7.
An example of land formed by wind deposits is a .
- sand dune
- sea stack
- moraine
- mudflow
8.
Estuaries are coastal basins that tend to be compared to other coastal geological features.
- old; long-lived
- old; short-lived
- young; long-lived
- young; short-lived
9.
Which of the following are sources that tend to increase the volume of sand on a beach?
- cliff erosion, longshore transport, offshore transport
- river sediment, cliff erosion, longshore transport
- offshore transport, wind erosion, river sediment
- wind erosion, longshore transport, river sediment
10.
Seawalls are often constructed along shorelines to protect property and infrastructure. Which describes a consequence of seawall presence?
- seawalls reduce coastal water energy
- seawalls trap sand and create beaches
- seawalls impede longshore drift of sediment
- seawalls increase sand erosion from coastlines
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