Vocab

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Across
  1. 4. to keep something safe
  2. 6. helpful
  3. 8. easy to understand
  4. 10. things that are thrown away
  5. 12. the process of learninng something
  6. 15. "Lingkungan" in English
  7. 17. chance of danger
  8. 18. the group of people who control a country
  9. 20. a topic or problem people talk about
Down
  1. 1. can cause harm
  2. 2. difficult situation
  3. 3. something that is needed
  4. 5. dirty contamination
  5. 7. to make something better
  6. 9. problem answer
  7. 11. to stay away from something
  8. 13. something that cause damage
  9. 14. something that has great value
  10. 16. to help or agree to something
  11. 19. explanation