Deck 48: Coastal Processes

Question 1

The area where the land meets the sea is termed the:

A) littoral zone
B) coast
C) shore
D) backshore

Answer 1

A

Question 2

The key agents that shape coastal landforms are:

A) winds
B) waves
C) earthquakes
D) volcanoes

Answer 2

B

Question 3

Large waves are generated by:

A) short fetch
B) short duration that wind blows
C) variable wind directions
D) none of these

Answer 3

D

Question 4

The period of a wave is defined as the time required for a wavelength to pass a fixed point.

Question 5

When waves begin to interact with the seafloor:

A) wavelength decreases
B) wave height increases
C) steepness decreases and the wave breaks
D) both a and b

Question 6

If a wave's wave height is 10 meters and its wavelength is 20 meters, at what depth will the wave begin dragging on the ocean floor?

A) 5 meters
B) 10 meters
C) 15 meters
D) 20 meters

Question 7

As a wave approaches the shoreline, its energy decreases.

Question 8

Water moving up the beach after the wave breaks is termed:

A) surf
B) backwash
C) breaker
D) swash

Question 9

The effect of the concentration of wave energies on headlands is to:

A) make the coastline more irregular
B) make the coastline straighter
C) produce more sand dunes along the coast
D) erode the bays

Question 10

Wave benches expand through these processes:

A) sand deposition on the bench
B) hydraulic action
C) river erosion along the coast
D) corrosion
E) both (b) and (d)

Question 11

Groins are mostly constructed to:

A) stabilize beaches by lessening erosion
B) to protect boats along the coast
C) to prevent cliff erosion
D) to produce a calm environment along the coast for organisms of the sea

Question 12

Which is not a major factor in the development of tides on our planet?

A) the tilt of the earth
B) the rotation of earth
C) the gravitational pull of the moon
D) the gravitational pull of the sun

Question 13

When the earth is at right angles to the moon's and sun's attraction, these will be generated.

A) neap tides
B) spring tides
C) both a and b
D) none of these

Question 14

The tidal range increases _______.

A) along straight beaches
B) in narrow estuaries and bays
C) along wide beaches
D) along shallow beaches

Question 15

Storm surges result in part from:

A) strong winds associated with tsunami
B) high atmospheric pressure along the coast associated with storms
C) low atmospheric pressure along the coast associated with storms
D) all of these

Question 16

Lake waves would be largest when:

A) winds are strong and fetch is short
B) winds are strong and fetch is long
C) winds are weak and fetch is short
D) winds are weak and fetch is long