Crossword Puzzle 8e2 29/11

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Across
  1. 2. down reduce to a lower level
  2. 3. change very quickly and strongly
  3. 4. experience or see a change
  4. 6. change slowly over a period of time
  5. 7. drop suddenly to a very low level
  6. 8. change at a fast speed
  7. 10. increase suddenly or quickly
  8. 11. move downward to a lower point
  9. 13. change in a large and noticeable way
  10. 14. be different at different times
  11. 18. change at a low speed
  12. 19. go down to a smaller level
  13. 20. move upward to a higher point
Down
  1. 1. change at a medium level
  2. 3. change by a big amount
  3. 5. change by a small amount
  4. 6. up rise to a higher level
  5. 7. fall extremely fast
  6. 9. become lower in number or amount
  7. 11. change up and down many times
  8. 12. become larger in number or amount
  9. 15. change in a continuous, even way
  10. 16. rise extremely fast
  11. 17. increase slowly or steadily