Crossword from chapters 4 and 4.1

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Across
  1. 1. a process that causes beaches to became unsafe for swimming
  2. 5. a sensible way of thinking
  3. 8. a way to do something
  4. 10. the products of the countryside
  5. 11. a measurement of ones impact of climate
  6. 12. a substance that is used to get rid off unwanted plants
  7. 14. a synonym for "farming"
Down
  1. 2. harvesting in turns
  2. 3. a synonym for "uninhabited"
  3. 4. food food that, once properly stored, can last very long time
  4. 6. a material used in baking
  5. 7. an area suitable for farming
  6. 9. a substitute for meat
  7. 13. someone who doesn't live in the countryside