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Results 1 - 4 of 4 for Nitrogen
  1. Kidney Tests (National Library of Medicine)  
    You have two kidneys. They are fist-sized organs on either side of your backbone above your waist. Your kidneys filter and clean your blood, taking out waste ...
  2. Biodefense and Bioterrorism (National Library of Medicine)  
    A bioterrorism attack is the deliberate release of viruses, bacteria, or other germs to cause illness or death. These germs are often found in nature. ...
  3. Urine and Urination (National Library of Medicine)  
    Your kidneys make urine by filtering wastes and extra water from your blood. The waste is called urea. Your blood carries it to the kidneys. From the kidneys, ...
  4. Water Pollution (National Library of Medicine)  
    ... fertilizers, cause problems in lakes, ponds, and reservoirs. Nitrogen and phosphorus make algae grow and can turn ...