Marching band and drum corps uniforms often include an item called a gauntlet which includes no glove for the hand, but is just a flared cuff. Some versions are closer to bracers or vambraces in style.o throw down the gauntlet is to issue a challenge. A gauntlet-wearing knight would challenge a fellow knight or enemy to a duel by throwing one of his gauntlets on the ground. The opponent would pick up the gauntlet to accept the challenge.
Oxygen demanding wastes: Waters 'enriched' with wastes or nutrients from human, domestic or wildlife are likely candidates for oxygen depletion. Rapid microbial growth spurred on by excess nutrient availability requires oxygen-lots of oxygen.aters 'enriched' with wastes or nutrients from human, domestic or wildlife are likely candidates for oxygen depletion. Rapid microbial growth spurred on by excess nutrient availability requires oxygen-lots of oxygen.
Humans need oxygen to live, but not as much as you might think. The minimum oxygen concentration in the air required for human breathing is 19.5 percent. The human body takes the oxygen breathed in from the lungs and transports it to the other parts of the body via the body's red blood cells. Each cell uses and requires oxygen to thrive. Most of the time, the air in the atmosphere contains the proper amount of oxygen for safe breathing.