DSE Geography Quiz 2.5 Part A Coastal Processes Quiz

How are waves generated?

True or False: The coast is a dynamic zone where the interaction of the sea and land processes takes place.

• True

• False

What is the shore?

• The area between the highest and the lowest water level.

• The submerged area extending seaward from the nearshore.

• The area of land above the highest water level.

• None of the above.

Waves are generated by:

• The moon's gravitational pull.

• Wind blowing over the surface of the sea.

• Underwater earthquakes.

• Tidal changes.

How do waves break when they approach the shore?

• The wave height decreases and the waves spill over.

• The wave energy increases and the waves crash violently.

• The wavelength shortens and the waves lose all energy.

• The waves become perfectly circular and break smoothly.

Which of the following is true about constructive waves?

• They are formed by strong winds or storms.

• Their swash is weaker than their backwash.

• They have a high wave frequency.

• They result in a wide and flat beach.

Which of the following is true about destructive waves?

• Their backwash is stronger than the swash.

• They have a long wavelength and low wave height.

• They result in a wide and flat beach.

• They are formed in calm weather conditions with weak winds.

Which of the following is NOT a type of wave erosion?

• Hydraulic action

• Abrasion

• Corrosion/Solution

• Compression

In hydraulic action, waves:

• Pick up rocks and throw them at the shore.

• Force pockets of air into cracks in rocks.

• Dissolve soluble minerals in rocks.

• Break rocks into smaller pieces by hitting each other.

True or False: Attrition occurs when rocks hit each other, becoming smaller and rounder over time.

• True

• False