Coastal Landscapes and Change - Threshold Test 1

What is an open system in the context of coasts?

• A system that receives inputs and transfers outputs to other systems

• A system that is completely isolated from other systems

• A system that only receives inputs but does not transfer outputs

• A system that only transfers outputs but does not receive inputs

What are sediment cells typically considered in terms of sediment?

• Open systems

• Closed systems

• Isolated systems

• Dynamic systems

What is the role of negative feedback in a coastal system?

• It enhances changes, making the system more unstable

• It lessens changes, taking the system back towards equilibrium

• It has no effect on the system

• It only affects the inputs of the system

What happens to sediment when destructive waves lose their energy?

• It is deposited as an offshore bar

• It is eroded away completely

• It remains suspended in the water

• It is deposited on the beach

What is the effect of positive feedback on a coastal system?

• It stabilizes the system

• It exaggerates changes, making the system more unstable

• It has no effect on the system

• It reduces the rate of erosion

What is the littoral zone?

• The area of the coast where land is subject to wave action

• The area of the coast where land is protected from waves

• The area of the coast where land is above sea level

• The area of the coast where land is below sea level

Which of the following is a short-term factor affecting the littoral zone?

• Tides and storm surges

• Changes in sea level

• Climate change

• Erosion

What is the backshore in the littoral zone?

• Area above high tide level and only affected by exceptionally high tides

• Area where most wave processes occur

• The open sea

• The breaker zone

According to Valentine’s Classification, what causes an advancing coastline?

• Land emerging or deposition

• Land submerging or erosion

• Post-glacial adjustment

• Climate change

What is post-glacial adjustment?

• The land 'wobbles' as the glacier above it melts, causing isostatic sea level change

• The land rises due to tectonic activity

• The land sinks due to erosion

• The land remains stationary