APES TEST Flashcards
the loss or removal of nitrogen or nitrogen compounds. carried out by bacteria in soil and water.
Denitrification
Nitrate is taken up by plants through their roots and is incorporated into proteins, DNA, and other biomolecules.
Assimilation
the changing of free nitrogen in the air into a combined form (as ammonia) especially by bacteria in the soil and in roots.
Nitrogen Fixation
nature’s way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again.
Carbon Cycle
the biogeochemical cycle that describes the transformation and translocation of phosphorus in soil, water, and living and dead organic material.
Phosphorous Cycle
a repeating cycle of processes during which nitrogen moves through both living and non-living things: the atmosphere, soil, water, plants, animals and bacteria. In order to move through the different parts of the cycle,
Nitrogen Cycle
The ocean is the largest reservoir and over 70% of the Earth’s surface of water and therefore the greatest source for evaporation.
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