Individual sand grains move along a beach:a.
straight in the direction of the longshore current.
b. straight offshore.
c. in circles up and down the beach face but not horizontally down the beach.
d. in a zigzag pattern in the direction of longshore currents.
e. only during storms.
Q. 2 -
A deposit of unconsolidated sediment that extends landward from low tide to a change in topography
or to where permanent vegetation begins is a:
a. spit.
b. tombolo.
c. barrier island.
d. beach.
e. baymouth bar.
Q. 3 -
Narrow surface currents that flow in the same general direction as the approaching waves are:a.
rip currents.
b. nearshore currents.
c. longshore currents.
d. upwelling currents.
e. refraction currents
Q. 4 -
Currents that form from the collective movement of wave water refracted off a shoreline are:a.
rip currents.
b. nearshore currents.
c. longshore currents.
d. upwelling currents.
e. refraction currents.
Q. 5 -
The distance wave-producing winds blow over a continuous body of water is the:a.
wavelength.
b. trough.
c. height.
d. fetch.
e. velocity
Q. 6 -
Water in waves is displaced from the circular orbits when:a.
waves enter progressively shallower water.
b. seas become swells.
c. waves reach great heights.
d. waves reach great lengths.
e. winds reach a critical velocity.
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