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Geography Revision, Rivers. - Coggle Diagram

- - - - Sea walls.
        
        They are good for protecting the places behind it from erosion.
        
        Sea walls obstruct the environment as it can deflect the wave energy which makes the energy goes down to other bits of the coast which might not have coastal defences which would affect the coast there.
        
        They can cost a lot.
        
        And they also look unaesthetically pleasing.
- - - - Sandstone is used for paving tiles and the construction of buildings and students.
  - - - This is because they are formed when magma from inside the Earth erupts and cools on the surface of the Earth due to volcanic activities (extrusive rocks), or when the magma cools inside the Earth to form intrusive rock which may be exposed to weather and erosion later.
    - - Granite (intrusive rock) is used for making gravestones, statues and countertops.
      - Basalt (extrusive rock) is used in the construction of building and statues.
      - Pumice (extrusive rock) is used in toothpaste, cosmetic products and cement.
      - Gabbro (intrusive rocks) is used for flooring, worktops, facing and monumental statues.
  - - - Marble (formed from limestone) is used for fireplaces, sculptures, gravestones, work surfaces, chopping boards and ornaments.
- - - - A spit is where the land extends out to sea
    - - Beaches are made up of deposited material. Beaches form in bays.