How humanity doubled life expectancy

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Across
  1. 3. a visual representation of data or information
  2. 9. the process of getting rid of something completely or of destroying something bad
  3. 11. a large difference between things or groups
  4. 13. tasting good enough to eat or drink
  5. 17. statements, information, ideas, or beliefs disagree with each other and cannot both or all be true
  6. 18. the quality of being able to live or last for ever
  7. 20. the length of time that someone is likely to live
  8. 21. a new idea, method, piece of equipment etc
  9. 24. something such as a line on a map that marks where one area of land ends and another begins
  10. 25. great size, importance, or effect
Down
  1. 1. the length of time that a person or animal lives or is expected to live
  2. 2. relating to statistics
  3. 4. the process of heating something, especially milk, at a controlled temperature for a fixed period of time in order to kill bacteria
  4. 5. facts or information used for making calculations or decisions
  5. 6. increasing more quickly than expected
  6. 7. to make a problem become worse
  7. 8. the number of deaths within a particular area, group etc
  8. 10. causing difficulties that interrupt something or prevent it from continuing
  9. 12. a serious infectious disease that mostly affects children. It destroys muscle and can cause paralysis
  10. 14. a serious disease in which your skin becomes covered in spots that can leave permanent marks
  11. 15. a chemical element that is very poisonous, often used to kill rats
  12. 16. the fact of having a long life or existence
  13. 19. to give official permission for something to happen
  14. 22. a baby, or a very young child
  15. 23. made dirty, polluted, or poisonous by the addition of a chemical, waste, or infection