Ocean Education

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Across
  1. 4. A layer in the ocean where water temperature changes rapidly with depth
  2. 6. The division of an ecosystem into different zones based on environmental conditions and organisms
  3. 7. A process in which excess nutrients cause rapid plant or algae growth in a body of water
  4. 8. Catching fish faster than they can reproduce and replenish their population
  5. 9. The production of light by a living organism
Down
  1. 1. The movement of cold, nutrient-rich water from deep in the ocean toward the surface
  2. 2. The farming and raising of aquatic animals or plants for food or other purposes
  3. 3. The process plants use to make food from sunlight, water, and carbon dioxide
  4. 5. The variety of different living organisms in an ecosystem
  5. 9. The measurement and mapping of the depth and shape of the ocean floor