Chaotic Crossword !!

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Across
  1. 1. Is the ocean acidic or alkaline?
  2. 6. What hard engineering technique is built to reflect wave energy and protect land behind?
  3. 8. What is the secondary effect of an earthquake?
  4. 10. Which country is commonly mistaken as being called Dubai?
Down
  1. 2. Which plate margin involves a continental AND oceanic plate?
  2. 3. Which sea is nearest to Iran?
  3. 4. What transportation type includes large boulders getting rolled along the sea floor?
  4. 5. Which engineering technique is less expensive and works with nature?
  5. 7. What coastline is the fasted eroding coastline in the UK?
  6. 9. Where was the last world cup held as of 2023?