Geography!!! (1 Viewer)

[i love to act]

Hi everybody,
I have a geography exam tomorrow and I need a bit of help -

well firstly, with coastal management -
1. What does erosion, transportation and deposition mean?
2. What are erosions landforms?
3. Depositional landforms?


Oh, and also, how can I do a case study on coastal management during an exam? I don't really understand and my geo teacher isn't replying to my email

Thanks guys!

 

[rolror88]

Erm I'll give it a shot from memory, (which is pretty bad lol)

Erosion is the wearing away of the earth’s surface by water, wind, ice and other natural elements. Basically with coastal management, its a coastal process which can create new landforms. Such as rock platforms, wave cut notch, arches, stacks, blowhole. (These are erosional landforms)

Depositional landforms.. dont have a good definition for this.. but from the word it'd be landforms which have been formed by rock and sand deposition.. I can't remember any types of landforms..

Transportation? Would that be like longshore drift?

With the case study bit, well you should have went on an excursion that involved a field trip (well my geo teacher says that's what most schools do) and you do a case study.. Like our school did it at Collaroy (or something like that) From our excursion, we got told what problems faced the beach there, and proposal/or methods employed (such as sea wall, gryones, purchasing of property) I think this is what you mean by case study, but I could be wrong.

 

[studentcheese]

Coastal Landforms
- Are formed by two processes erosion(27% of coast) and deposition (make 73% of coast)
- Erosion: cliffs, rock platforms, headlands, caves, blowholes, stacks and arches
- Deposition: beaches, spits, dunes, estuaries and lagoons
- Dune blowouts: loose sand blown from dune because vegetation is removed
- Lagoon: formed when sandbar develops, closing estuary
- Estuaries are parts of river that are tidal and occur at sea. They catch mud, sand and nutrients
- Beaches: when material is brought to the shore. Material can be sand, stones or pebbles
- Caves: Formed when waves are refracted (bent towards) a headland and release energy at either side of it.
- Arch: formed when caves erode either side of a headland
- Dunes: Sand is moved to beach in swash. Wind blows sand from beach to fore dune. Grasses bind sand and form a dune. Small plants and shrubs grow to form back dune.
- Cliff: Erosion between low and high tides cut rocks to form a rock platform which then become weak and collapses
- Stack: Further erosion of rock supporting arch will collapse
- Spit: Longshore drift moves sand and other material along a beach and if it occurs in mainly one direction, sand may extend along the coastline
- Blowhole: When caves are exposed by the sea, water rushes in and can cause pressure to build at back of cave. Part of the roof collapses.
- Tombolo: spit joins two land areas
- Headlands: formed when coastal rocks are hard and resist erosion. Softer rocks are eroded and transported elsewhere.

Erosion: Occurs from the wearing away of material by wind, water, etc to form a certain landform
Deposition: Occurs when material is transported by wind, water, etc to form a certain landform.
Transportation: When material is moved from one place to anoter. (i.e by wind, water, etc)

 

[i love to act]

Thank You So Much!!!

 

[studentcheese]

For geography, if I am told to explain how rural and urban communities in Australia are changing..... then what should I include in it?

 

[Cardea]

For geography, if I am told to explain how rural and urban communities in Australia are changing..... then what should I include in it?

Is this for population trends or urban growth and decline?

If it's to do with population trends and challenges for the future [that area of study], you should probably include an explanation of population movement - e.g. people seeking sea change, decline in the facilities/services available in country towns. Younger families moving to coastal communities, leaving the city life of stress, people are relocating from rural communities and retirees are also in search of a sea change.

As for urban growth and decline, I don't really know much about it - I specialise in land and water management