Geography EOY review Unit 4

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Across
  1. 4. The drop in sea level from high to low tide.
  2. 5. This is making the cliff less steep with bulldozers. Cliffs can be unstable while being eroded so reducing the angle means you should reduce the levels of erosion.
  3. 6. (Erosion) Stronger backwash.
  4. 8. Wave breaks, water washes up on beach.
  5. 9. Large boulders placed in cages which means can be installed quickly.
  6. 13. dump materials
  7. 16. When the water is at it's highest level.
  8. 17. Bigger waves due to the stronger gravitational pull of the moon when it is closest to the earth.
  9. 18. using anything already in the landscape to manage risk.
  10. 19. Sand is redistributed from the lower part of the beach to the upper part of the beach.
  11. 20. manmade, concrete or wood, expensive, invasive.
  12. 22. move materials
  13. 23. Waves continually carry material on and off the land. If they carry more on than off - a beach forms!
Down
  1. 1. Sand is pumped onto an existing beach to build it up.
  2. 2. Designed to stop longshore drift from transporting beach material away.
  3. 3. Made out of concrete & aims to absorb wave energy, often curved to direct waves energy back to sea. Protects the base of the cliff.Breakwater Built out into the sea.Waves break on breakwater first before going onto the beach.
  4. 7. eat away at coast
  5. 10. Water runs back to the ocean.
  6. 11. (deposition)Stronger swash.
  7. 12. Marram grass planted on sand dunes stabilizes the dunes and helps to trap sand to build them up.
  8. 14. Rise and fall of water in the ocean due to the moon's gravitational pull.
  9. 15. When the water is at it's lowest level.
  10. 21. Similar to sea walls, but often built out of wood & designed to absorb wave energy.