How do you spell that

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Across
  1. 3. promoting and selling products
  2. 4. branch of science concerned with the nature and properties of matter and energy
  3. 5. another language
  4. 7. the business of providing hotels, sightseeing spots ect.
  5. 8. You need rhythm for this class
  6. 11. physical features of the earth
  7. 13. study about the financial well being of a country
  8. 15. study about your beliefs
  9. 16. scientific study of the human mind
  10. 18. a branch of science
Down
  1. 1. keeping records and information about money
  2. 2. studying methods for collecting, analyzing, interpreting and presenting data
  3. 6. to do with computers
  4. 9. what is morally right and wrong for business
  5. 10. study of the human body
  6. 12. a language
  7. 14. branch of math using letters to represent numbers
  8. 17. branch of math