Coastal processes

What erosional process occurs when waves crash against rocks and compress air in the cracks?

• Abrasion

• Hydraulic action

• Attrition

• Solution

What process throws particles against the cliff rocks causing them to scrape and remove small pieces?

• Solution

• Hydraulic action

• Attrition

• Abrasion

What process erodes particles in the water as they smash into each other and break apart, causing the edges of the rocks to be rounded?

• Abrasion

• Attrition

• Hydraulic action

• Solution

What process is occuring when weak carbonic acid in the seawater dissolves rocks?

• Attrition

• Hydraulic action

• Solution

• Abrasion

A deposition bar or beach landform that is formed off coasts?

• Estuary

• Spit

• Beach

• Bay

Coastal landform where the mouth of a large river meets the ocean.

• Spit

• Beach

• Estuary

• Headland

If a river was flowing from Mount Taranaki straight out to Opunake beach, which direction is it flowing?

• West

• North

• East

• South

If the weather is forecasted for a southerly wind, where is the wind likely to be coming from?

• Australia

• Antarctica

• The Tropics

• Auckland

Which is the correct way to write a grid reference?

• 145289

• 14.528.9

• 14.5-28.9

• 145-289

What do contour lines on a map show?

• Buildings

• Roads

• Elevation above given level

• Direction