tom swift among the diamond makers

 so in science today it's kind of hard to explain. but if you are a farmer you most likely use a fertilizer. that has too much nitrate and that stuff goes into the air. and into water and lakes and things making the water dangerous to drink or swim. in the nitrogen cycle is like a balance you can't put into much otherwise it tips. the wrong way and you get too much nitrogen this stuff animals and plants need alike. but did you know the air is not pure air about 78 percent of what you breathe in is nitrogen? and your body gets rid of it like trash. and the other bit that's left is actually the clean stuff that you need?