Book 10 U4 Reading Crossword Puzzle

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Across
  1. 1. (especially of accidents and other unexpected events) to happen
  2. 3. contains bubbles of gas
  3. 5. the study of the countries, oceans, rivers, mountains, cities etc of the world
  4. 7. to force something out of its usual or original position
  5. 8. causing a lot of damage or destruction
  6. 10. to continue to live or exist
Down
  1. 2. very quickly and in a very short time
  2. 4. an area with a wall or bars around it that is joined to the outside wall of a building on an upper level
  3. 6. without a home
  4. 9. the rise and fall of the sea