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2.3 Vocabulary

Straughn 9th Grade Honors Biology

QuestionAnswer
Nitrogen-fixing bacteria microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen
Nitrification a microbial process that converts ammonia and similar nitrogen compounds into nitrite (NO2–) and then nitrate (NO3–)
Denitrification the conversion of soil nitrate to the nitrogen gases N2O and N2
Eutrophication excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen
Acid rain rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH)
Photosynthesis the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
Respiration a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances
Fossil fuels a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms
Greenhouse gas gases in the earth's atmosphere that absorb IR from the sun and release it
Erosion process in which earthen materials are worn away and transported by natural forces such as wind or water
Algal bloom a rapid growth of microscopic algae or cyanobacteria in water
Transpiration a process that involves loss of water vapour through the stomata of plants
Run off the part of the water cycle in which the water flows over the land as surface water rather than be absorbed into groundwater or evaporating
Created by: user-1582395
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