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cycle info
info for all the cycles (phosphorus, carbon, nitrogen, water)
| Question | Answer |
|---|---|
| nitrogen cycle is one of the most limiting factors in ecosystems | true |
| which gas makes up 78% of the atmosphere | nitrogen |
| which is used to make fossil fuels | carbon |
| phosphorus is not in the atmosphere | true |
| the sun is the boss of the water cycle | true |
| phosphorus cycle has no effect on aquatic ecosystems | false |
| nitrogen is needed to | build proteins |
| microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen | nitrogen-fixing bacteria |
| a microbial process that converts ammonia and similar nitrogen compounds into nitrite (NO2–) and then nitrate (NO3–) | nitrification |
| reverse nitrification | denitrification |
| 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 |
| photo synthesis | 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 | he part of the water cycle in which the water flows over the land as surface water rather than be absorbed into groundwater or evaporating |