Luke

Nitrogen Cycle Facts media type="custom" key="6284595" width="80" height="80"
 * All living things need nitrogen.
 * 78% of the Earth's atmosphere is nitrogen.
 * This is the nitrogen cycle- Denitrification, Ammonification, Nitrogen Fixation, Uptake, then Erosion and Runoff.
 * Denitrification is when bacteria in the soil releases nitrogen in the air.
 * Ammonification is when nitrogen is returned to the soil.
 * Nitrogen Fixation is when lightning and bacteria in the soil changes the nitrogen to be a useful form for plants.
 * Uptake is when nitrogen in food is eaten in some way.
 * Erosion and Runoff is when nitrogen in soil is washed away by rain, then the extra water that is't carryed by the soil picks up the nitrogen and other chemicals and then the water goes into lakes, rivers, and the ocean.
 * Nitrogen builds up our mucles, bones, and DNA.
 * Nitrogen depends on bacteria, water, lightning, plants, and animals to be used for life.