NYPD cop who sifted through ten tons of 9/11 debris says he saw a ghost 'trying to help' while searching for clues to identify victims from attacks at landfill, book reveals. 1  Sgt. Frank Marra, 48, said he saw ghost of African American woman, who was dressed in white as a Red Cross worker from Second World War.
oxygen debt. a state that arises in very active muscles when insufficient oxygen is supplied by the lungs, causing the muscle tissue to respire anaerobically with the production of LACTIC ACID. When muscular activities slow down, the rate and depth of breathing remains at a high level until the lactic acid has been oxidized.
Oxygen atoms are present in water (H 2 O) and water is essential to all life. Oxygen and is present in many organic compounds.Most organisms use oxygen for respiration.While oxygen (O 2) is necessary for life, oxygen as ozone (O 3) is highly toxic. On the other hand, ozone is an important component of the atmosphere (the ozone layer) and helps to shield us from harmful ultraviolet rays from the sun.You can use this form to calculate how much oxygen your body contains.azards and risks associated with oxygen: oxygen at high partial pressures causes convulsions, pulmonary changes and teratogenic effects. Oxygen as ozone (O 3), peroxide, or superoxide is highly toxic. Too little oxygen results in asphyxiation.