Geography knowledge!

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Across
  1. 5. The world's coldest continent
  2. 9. Type of geography that studies how and where people live and change the environment
  3. 10. The world's largest rainforest
  4. 11. The world's longest mountain range
  5. 13. Imaginary line round the centre of the Earth
  6. 15. Capital of Spain
  7. 16. The body of water off the east coast of the UK
  8. 18. The world's deepest ocean trench
  9. 20. Line of latitude, The Tropic of...
Down
  1. 1. Type of geography that studies natural processes such as rivers and earthquakes
  2. 2. Word used to describe a country without a coastline
  3. 3. The world's largest desert
  4. 4. Line of latitude, The Tropic of...
  5. 6. Capital of Japan
  6. 7. A long thin country in South America
  7. 8. Only country in the world beginning with "O"
  8. 12. Name of the ocean surrounding Antarctica
  9. 14. Capital of Canada
  10. 17. Name of the ocean west of the USA
  11. 19. The world's hottest continent