Across
- 3. is a limnological term for the process by which a body of water becomes progressively enriched with minerals and nutrients.
- 5. known as the hydrologic cycle or the hydrological cycle
- 6. is the change of the physical state of matter from the gas phase into the liquid phase, and is the reverse of vaporization.
- 7. is the formation of organic nitrogen compounds like amino
- 8. is a colorless gas with a density about 53% higher than that of dry air.
- 10. is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.
- 11. is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase.
- 12. include drizzling, rain, sleet, snow, ice pellets, graupel and hail.
Down
- 1. is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers.
- 2. are a type of biological cell. They constitute a large domain of prokaryotic microorganisms.
- 4. is the combined mass of water found on, under, and above the surface of a planet, minor planet, or natural satellite.
- 9. is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems.