Environmental and medical issues

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Across
  1. 3. The act of creating the universe
  2. 8. Protecting and preserving natural resources and the environment
  3. 9. Injecting semen into the uterus by artificial means
  4. 12. Naturally occurring materials
  5. 13. Islamic steward or successor
Down
  1. 1. Giving organs to be used in transplant surgery
  2. 2. Inability to have children
  3. 4. Looking after the environment so that it can be passed onto the next generation
  4. 5. A fertilised egg in the first 8 weeks after contraception
  5. 6. The method of fertilising a human egg in a test tube
  6. 7. The heating of the planet
  7. 10. An arrangement whereby a woman bears a child on behalf of another woman
  8. 11. The surroundings in which plants and animals live