Why Does River Damming Sometimes Contribute to Coastal Erosion

question 16

Multiple Choice

Why does river damming sometimes contribute to coastal erosion?

• A)The supply of sediment to beaches is shut off.
• B)The supply of water to the longshore current is reduced.
• C)The channel between jetties tends to become clogged with sand.
• D)The reservoirs occasionally flood through a distributary channel, eroding the beach.

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Definitions:

Opportunity Cost

The worth of the best alternative option given up due to a decision made.

Production

The method of merging different material and immaterial inputs, such as plans and expertise, to produce something that can be consumed.

Opportunity Cost

The penalty for not embracing the immediate subsequent advantageous alternative when choosing.

Coffee

A brewed drink prepared from roasted coffee beans, which are the seeds of berries from the Coffea plant.