The Water Cycle Water cycles between atmosphere, land, and ocean. Condensation - gas to liquid Precipitation - liquid or solid falls Evaporation - liquid to gas Transpiration - evaporation from plant leaves Runoff – water running off land Groundwater – water under ground Percolation (infiltration) – water soaking into ground
The Carbon Cycle Combustion - burning (combining C w/ O 2 ) Cellular respiration – breathing out CO 2 Photosynthesis – plants take in CO 2 and give off O 2 Decomposition – bacteria give CO 2 off when they break down dead organisms.
The Nitrogen Cycle N 2 gas is “fixed” into ammonia (NH 3 ) by bacteria. Plants absorb N and animals take in N when they eat plants. (makes muscle) Ammonia from waste is converted back to nitrite and then nitrate by bacteria.
Your consent to our cookies if you continue to use this website.