Geology Chapter 15 part 2

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full or new moon

Tidal reach will be greatest locally during a ____________

refract (bend) so as to impact the shore in a nearly parallel manner

Wave crests ____________.

from headlands toward embayments

Wave refraction causes longshore currents to travel ____________

false

When high tide occurs at any single shoreline, that means it is also high tide at all other coasts throughout the world.

estuary

When the sea level rises, the ocean may invade a river valley, producing a nearshore body of water of mixed and variable salinity termed a(n) ____________

the shore is protected from strong waves

A coastline is more likely to consist of a tidal flat than a beach if ____________.

one-half of its wavelength

A wave will disturb the water to a depth equal to ____________

decreases

As waves approach shore in shallow water their speed ____________.

near freezing (2-4°C)

At the equatorial ocean basins, sea surface temperatures may reach 30°C or greater; at the sea floor 5 km below, the temperature is ____________.

greatest in headlands (points of land projected out toward the sea)

Because of wave refraction, erosion along an irregular coastline is ____________

right

Due to the Coriolis effect, surface currents in the oceans are always pulled to the ____________ in the northern hemisphere as compared to the prevailing wind direction

brackish (between freshwater and marine salinity)

Estuaries most commonly have salinity that is ____________.

false

Every shoreline experiences a tidal reach (difference in elevation between high and low tide) of about 3 m.

fjords

Flooded valleys that were excavated by glaciers are termed ____________

surface winds, coastal upwelling and downwelling, sinking of cold and saline water

Global circulation of ocean water is influenced by ____________

parallel to the shoreline

Longshore currents flow ____________

directly away from the shoreline

Rip currents flow ____________.

true

Rogue waves arise from constructive interference of multiple convergent waves; these waves occasionally can be more than 100 feet high.

increase erosion rates in the region downcurrent from the groin

Sand groins ____________

eye wall

The strongest winds within a hurricane are found in the ____________


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