XII EVS CH 1&2 Revision

1234567891011121314151617181920212223242526272829303132
Across
  1. 5. ESV stands for Ecosystem services ______.
  2. 7. Ecological succession that is occurring in a place that was initially inhabited but then destroyed is known as _____ succession.
  3. 8. When the species in a growing community increase and come close to each other it is called ________.
  4. 9. When plants dominate early stages of succession it is called ______ succession.
  5. 11. Food, fuel and medicines are classed as ________ services.
  6. 13. Purification of water is a type of _____ service.
  7. 16. The number of different species in an ecosystem is called _______.
  8. 17. The formation of a stable ecosystem over time is known as ecological ________.
  9. 18. When succession occurs on dry bare land it is known as ______.
  10. 21. Genetic diversity is a type of ____ service.
  11. 22. When succession occurs in an aquatic habitat it is known as ______.
  12. 24. The transitional space between communities is called __________.
  13. 25. Succession initiated by changes in the environmental conditions is known as _____ succession.
  14. 26. Early stages of ecological succession are called ____ stages.
  15. 29. We determine the economic value for an ecosystem service that has direct influence on the price of other things is _________ pricing method.
  16. 31. PES stands for _________ for Ecosystem services.
  17. 32. Ecological succession that is occurring in a previously uninhabited place is known as ______ succession.
Down
  1. 1. The destruction of an ecosystem, causing it’s entire loss is called_______.
  2. 2. Ecotourism is a type of ______ service.
  3. 3. The intermediate stage in ecological succession is known as a _____ community.
  4. 4. Balance in an ecosystem is called ______.
  5. 6. Agriculture, mining, and logging are examples of ______ disturbances.
  6. 10. WTP stands for ________ to Pay.
  7. 12. Value for an ecosystem to make resources available to others in our generation is _______ value.
  8. 14. Value for an ecosystem, even if we don’t use it is called _____ value.
  9. 15. Succession initiated by changes in organisms within the community is known as _____ succession.
  10. 19. The initial establishment of a plant community in the new area is known as ____.
  11. 20. We are uncertain about all the values an ecosystem may have in the future, this is _____ value.
  12. 22. When succession occurs in salt water or saline soil it is known as _____.
  13. 23. Value for an ecosystem service that will be passed on to future generations is called ______ value.
  14. 27. Cyclones, earthquakes and wildfires are examples of _______ disturbances.
  15. 28. Another word for soil is ________.
  16. 30. The final stage of ecological succession is called _______ community.