Week 17 crossword

123456789101112131415
Across
  1. 1. Damage caused to water, air, etc. by harmful substances or waste. [9]
  2. 4. Decaying plant material that is added to soil to improve its quality. [7]
  3. 5. The production of a certain amount. [6]
  4. 6. Any type of work that needs special training or a particular skill. [10]
  5. 7. Money that is owed to someone else. [4]
  6. 8. A person with a medical degree to take care of the health of animals. [12]
  7. 10. The protection of plants and animals, natural areas, and interesting and important structures and buildings, especially from the damaging effects of human activity. [12]
  8. 12. Someone whose job is to give advice to people about the law and speak for them in court. [6]
  9. 13. A person usually a man who has been trained to perform religious duties in the Christian Church. [6]
  10. 14. To act or process of putting in. [5]
  11. 15. Each number in a sequence. [4]
Down
  1. 2. The rules that say which calculation comes first in a math equation. [5,2,10]
  2. 3. They are symbols which indicate how to group an operation. [11]
  3. 9. Air, water, and land in or on which people, animals, and plants live. [11]
  4. 11. Rain that contains large amounts of harmful chemicals as a result of burning substances such as coal and oil. [4,4]