Across
- 3. The movement of nutrients among pools or reservoirs in a nutrient cycle
- 4. Water that condenses out of the atmosphere and falls to earth
- 7. An organism that can use the energy from sunlight to produce its own food
- 9. The process of nutrient enrichment, increased organic matter production, and subsequent degradation of the ecosystem of a body of water
- 10. A step in a process that limits the progress of the overall process; for example, a limiting nutrient
Down
- 1. Compounds made of carbon atoms and other elements held together primarily with covalent bonds
- 2. The condition of extremely low dissolved oxygen concentration in water
- 5. The water from precipitation that flows into streams, rivers, lakes, ponds, and, eventually, the ocean
- 6. Type of feedback loop in which the output of one type acts to move the system in the opposite direction
- 8. In a nutrient cycle, a reservoir that accepts more nutrients than it releases