Environmental Ed Crossword

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Across
  1. 2. - any geological formation containing or conducting ground water, especially one that supplies the water for wells, springs, etc.
  2. 3. - the part of the earth's crust, waters, and atmosphere that supports life.
  3. 6. - the portion of the earth, about 1800 miles (2900 km) thick, between the crust and the core.
  4. 7. - the act or process of depositing.
  5. 8. - The so;id portion of the earth.
  6. 10. - an action or instance of transpiring.
  7. 11. Plates - The dozen or so plates that make up the surface of the earth.
  8. 13. - the complex process by which carbon dioxide, water, and certain inorganic salts are converted into carbohydrates by green plants, algae, and certain bacteria, using energy from the sun and chlorophyll.
  9. 15. - the gaseous envelope surrounding the earth; the air.
  10. 17. -
Down
  1. 1. - the crust and upper mantle of the earth.
  2. 4. - a process by which pollution from such sources as sewage effluent or leachate from fertilized fields causes a lake, pond, or fen to become overrich in organic and mineral nutrients, so that algae and cyanobacteria grow rapidly and deplete the oxygen supply
  3. 5. Fixation - any process of combining atmospheric nitrogen with other elements, either by chemical means or by bacterial action: used chiefly in the preparation of fertilizers, industrial products, etc.
  4. 9. - falling products of condensation in the atmosphere, as rain, snow, or hail.
  5. 12. respiration -
  6. 14. oxidation of organic compounds that occurs within cells, producing energy for cellular processes.
  7. 16. loop - the path by which some of the output of a circuit, system, or device is returned to the input.