Cycles In Nature Flashcards
reservoir
a place where a large quantity of a resource sits for a long period of time
biogeochemical cycles
the complex cycles through which nutrients such as carbon,oxygen,nitrogen, phosphorus,sulfur,and water move through the environment
exchange pool
a site where a nutrient sits for only a short period of time
residency time
the amount of time a resource spends in a reservoir or an exchange pool
Law of Conservation Matter
States that matter can neither be created nor destroyed
precipitation
water that condenses in the atmosphere and and falls to the Earth’s surface in liquid or solid form
groundwater
any water that comes from below the ground (from wells or aquifers)
runoff
that portion of rainfall that runs into streams as surface water rather than being absorbed into groundwater or evaporating
evaporation
conversion of liquid into gas (vapor)
transpiation
the act or process of transpiring, or releasing water vapor, especially through the stomata of plant tissue or pores of the skin
respiration
the process by which animals (and plants!) breathe and give off carbon dioxide from cellular metabolism
photosynthesis
the process in green plants and certain other organisms by which carbohydrates are synthesized from carbon dioxide and water using light as an energy source: most forms of photosynthesis release energy as a byproduct
combusted
burned
nitrogen fixation
the conversion of atmospheric nitrogen into compounds, such as ammonia, by natural agencies or various industrial processes
nitrification
the process in which soil bacteria convert ammonium (NH4+) to a form that can be used by plants: nitrate or NO-
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