Questions and Answers
Oceanographers usually classify coasts by the physical processes shaping the coasts.
True
Human activities that have contributed to shoreline erosion include:
A summer beach is characteristically broad and covered with sand.
True
A problem facing many beaches along the U.S. east and west coasts is:
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Steep, narrow, rocky beaches are usually found in areas of high wave energy.
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An estuary in which salinities tend to be higher away from the ocean entrance than near the ocean entrance is called a salt wedge estuary.
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The highest point on a summer beach profile is backshore.
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The single most influential agent changing the shore and coast is the tidal range.
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Study Notes
Classification of Coasts
- Oceanographers classify coasts based on the physical processes that shape them.
Human Impact on Shoreline Erosion
- Activities contributing to shoreline erosion include:
- Seawalls placed along the shore
- Construction of jetties on beaches
- Artificial breakwaters that slow down longshore currents
- Dams built on rivers transporting sediment to the coast
Characteristics of Summer Beaches
- Summer beaches are typically broad and sandy, providing a wide area for recreation.
Key Problems for U.S. Beaches
- A significant issue for many U.S. beaches is the loss of sand and subsequent beach erosion.
Beach Types and Wave Energy
- Steep, narrow, and rocky beaches are commonly found in regions experiencing high wave energy.
Estuary Salinity Patterns
- The term "salt wedge estuary" is not accurate for estuaries where salinities are higher away from the ocean entrance compared to the entrance area.
Beach Profile Points
- The highest point of a summer beach profile is not referred to as the backshore, which is a misconception.
Influential Agents of Coastal Change
- Tidal range is not the single most influential agent altering shores and coasts, contradicting common assumptions.
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Description
Explore the classification of coasts, human impacts on shoreline erosion, and the characteristics of summer beaches. This quiz also delves into key problems for U.S. beaches and the influence of wave energy on beach types. Test your knowledge on estuary salinity patterns and beach profiles.
