Oceans and Coastal Margins 2 - Interactions

What type of waves are characterized by a long wavelength and low height?

• Destructive waves

• Constructive waves

• Tidal waves

• Storm waves

Which process involves the gravitational pull of the moon and sun on the oceans?

• Wave action

• Sediment transport

• Tides

• Erosion

Which one of the following is NOT a source of sediment supply to coastal areas?

• Rivers

• Eroded material from cliffs

• Quarries

• From the sea bed

Which weathering process involves the expansion of sodium and magnesium compounds?

• Hydraulic action

• Biological weathering

• Salt weathering

• Freeze-thaw weathering

Which weathering process involves water solidifying and expanding into cracks?

• Hydraulic action

• Biological weathering

• Salt weathering

• Freeze-thaw weathering

Which process involves the wearing down of broken materials into smaller particles?

• Abrasion

• Attrition

• Hydraulic action

• Corrosion

Identify the process of erosion that involves rocks being thrown against the cliff face, wearing away the rock.

(a)  

Identify the process of erosion that involves the dissolving of rock by carbonic acids in sea water.

(a)  

What is the term for the movement of sediment along the coastline?

• Tidal flow

• Longshore drift

• Wave action

• Coastal erosion

What are the self-contained coastal units called, which act as barriers to sediment movement, within which sediments circulate?

• T cells

• Eukaryotic cells

• Prokaryotic cells

• Littoral cells