Geography crossword

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Across
  1. 5. plants and animals weaken rocks and make cracks in them
  2. 6. water penetrates into cracks then freezes and expands breaking the rock
  3. 7. they break on the shore and deposit material, building up beaches
  4. 8. the process whereby beach material is gradually shifted as result of waves meeting the shore at an angle
  5. 9. wind that blows from a usual direction
  6. 12. rocks or grains deposited on banks worn away for a long time
  7. 14. when rock is heated then cooled, they expand and the rock peels
  8. 15. when certain types of cliff erode as a result of weak acid in the sea
Down
  1. 1. action the wearing away of costal rock by the impact of crashing waves
  2. 2. carrying matter deposited by water
  3. 3. rocks react with the weak acid in the rain
  4. 4. to dash water and sediment around and down
  5. 10. the process of rocks and pebbles bumping into each other
  6. 11. when waves pick up beach materials and hurl them at the base of the cliff
  7. 13. the process by which the surface of the earth is worn away by the action of water or waves