| A | B |
|---|
| nitrogen fixing bacteria | bacteria that convert atmospheric nitrogen into nitrates (NO2), nitrites (NO1) and ammonia (NH3) |
| denitrification | this is caused by lightening & denitrifying bacteria N2 -> N1 + N1 |
| plant root nodules | these contain nitrogen fixing bacteria |
| DNA, RNA & Protiens | these are made by plants from nitrogen |
| nitrogen | An essential component of DNA, RNA, and proteins, the building blocks of life |
| decomposing bacteria | these break down poop and dead things |
| NH3 | ammonia |
| NO2 | nitrogen oxide |
| N2 | nitrogen in the air |
| N1 | nitrite |
| reservoir | a body of water (ocean, river, lake) |
| evaporation | the change of state from a liquid to a gas |
| condensation | the change of state from a gas to a liquid |
| precipitation | any form of water that falls to the earth's surface from the clouds (rain, snow, sleet, hail) |
| run off | water that is not absorbed by soil and runs into surface water |
| infiltration | the passing of a liquid through a substance |
| ground water | water beneath the surface of the ground |
| transpiration | the passage of water from a plant to the atmosphere |
| waste | all living organisms give this off |
| radiant energy | energy from the sun |
| eutrophication | too many nutrients in the water |
| carbon | the essential component of proteins, fats, and carbohydrates, which make up all organisms |
| carbon cycle | process by which carbon is cycled between the atmosphere, land, water, and organisms |
| carbon dioxide | CO2 |
| photosynthesis | process by which plants use sunlight, carbon dioxide, and water to produce carbohydrates and oxygen |
| cellular respiration | process by which cells produce energy from carbohydrates; atmospheric oxygen combines with glucose to form water and carbon dioxide |
| combustion | the burning of fuel |
| erosion | process in which the materials of Earth’s surface are loosened, dissolved, or worn away and transported from one place to another by a natural agent, such as wind, water, ice, or gravity |
| carbonates | make up the hard parts of bones and shells. Over millions of years, deposits have produced huge formations of limestone rocks |
| decomposition | the process by which organic substances are broken down into simpler forms of matter |
| carbon sink | – large deposit of limestone (carbonate) |
| fossil fuels | nonrenewable energy resource formed from the carbon compounds from the bodies of organisms that lived long ago (oil, coal, natural gas) |
