My name is not easy crossword

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Across
  1. 3. What is another word for something that has yet to be used?
  2. 4. What is a name given to natives due to a wrong assumption about the earth?
  3. 7. What is the word for a male sibling?
  4. 8. What is a handheld invention that launches a projectile using explosions?
  5. 9. What is someone who fights for their people/home called?
  6. 11. When people try to stay alive, they try to ______.
  7. 13. Different customs someone participates in would be a result of different _______.
  8. 14. What is it called when you have people who are extremely close to you?
  9. 15. What is someone who provides for their family called?
  10. 17. What is the most famous invention of the Wright brothers?
  11. 18. What is a sound made to draw a certain person's attention?
  12. 19. What is a place kids are sent to learn called?
Down
  1. 1. What is a type of consequence that often involves violence?
  2. 2. What is a sport about fighting others?
  3. 5. What was a way of conveying information commonly used before the internet?
  4. 6. What is a building associated with religion?
  5. 7. What is a book associated with cristianity?
  6. 10. What is latin for in place of parents?
  7. 12. What is a name for natives that live in or near the arctic circle?
  8. 16. What is the plant most commonly thought to produce most of our oxygen?