7.3 Questions

1. Erosion, transportation and deposition.
2. Wave refraction is when the waves energy is refracted causing the wave to be more concentrated in certain areas compared to others.
3.












4.Around the headlands is when erosion most occurs.
5. Hydraulic Action, corrasion and corrosion.
6. Erosion-accretion cycle is when the sand is taken away by big waves and then it forms a sand bar, then the waves slow push the sand back into place on the beach making it a cycle.
7. Wind, waves and ocean currents
8. Beaches
9. Wind causes the sand to travel towards inland but then it gets trapped by low-lying vegetation. Over time this will cause a sand dune

10. The waves come in on an angle and push the sand to one side of the beach.
11. Headlands - Hydraulic Action, corrasion and corrosion all have a part in eroding the headlands
Wave cut platform - hydraulic action, corrasion and corrosion all 'cut' through the cliff making a platform
Beaches - long shore drift, destructive waves, erosion-accretion cycle
Sand dunes - the wind causes the sand to go inland and this can cause a dune to form
12. It provides a buffer zone for the fragile plant life.
13. a. located off the great ocean road in Victoria
b. they have been there for roughly 20 millions years
c. They were created by the sea gradually eroding the soft limestone cliffs.
d. The London Bridge was an arch made of rock that collapsed in 1990.
e. Maybe. If barriers were placed around the apostles then it may prevent them from collapsing or a break wall or something. This would take a long time and a lot of money so it is unlikely.
14. The 12 apostles behind me are from rock formed up to 20 millions years ago. They were created by the sea gradually eroding the soft limestone cliffs. Eventually all of these will fall down if action is not taken towards them.