Coasts key terms

Which of these is a type of coastal erosion?

• Abrasion

• Slumping

• Traction

• Saltation

What type of erosion is where rocks and sediment in the water are thrown against the cliff, slowly wearing it away?

• Solution

• Abrasion

• Hydraulic power

• Traction

Distance of sea over which the wind has blown. What is the key term for this?

• Prevailing wind

• Longshore drift

• Fetch

• Onshore wind

Which of these is a feature of constructive waves?

• Low wave height

• Strong backwash

• Weak swash

• High frequency

Define traction

• When rocks are slowly dissolved by slightly acidic seawater

• When pieces of sediment bounce along the surface of the sea bed

• When sediment flies out the water

• When heavy rocks roll along the floor of the seabed

Which of these is a type of mass movement?

• Freeze thaw weathering

• Biological

• Carbonation

• Rockfall

Animals burrow into rocks or the roots of plants and trees grow into rocks. This causes bits to break off over long periods of time.

• Erosion of soil
• Plant growth in water
• Biological weathering

• Physical weathering

Rocks heat up and expand in the hot day time sun. They cool and contract in the cold night. Over time these stresses cause the outer layers of rocks to disintegrate.

• Rockfall

• Exfoliation

• Physical weathering

• Biological weathering

Which of these is not a feature of destructive waves?

• Tall in height

• Strong backwash

• Strong swash

• Short wavelength

What is the the meaning of sub-aerial processes?

• Processes operating above the high tide line i.e. not by the sea.

• Types of erosion

• Types of transport

• Types of weathering