7th Grade Week 6

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Across
  1. 4. The process of a body of water becoming nutrient rich.
  2. 7. A stable community that no longer goes through major ecological changes.
  3. 8. The process of one ecological community gradually changing into another.
Down
  1. 1. Ecological succession in areas where existing ecosystems have been disturbed or destroyed.
  2. 2. When contaminants, also known as pollutants, are brought into an environment and cause negative change.
  3. 3. Ecological succession in new areas of land with little or no soil or vegetation.
  4. 5. Balance between different parts of the ecosystem.
  5. 6. Any activity that takes resources from nature.