a condition where no oxygen is found in the water; often occurs near the bottom of over enriched lakes or estuaries during summer stratification
Oxygen deficiency in the blood cells or tissues of the body to such an extent that it causes physiological and/or psychological disturbance
A lack of oxygen Cells of the brain need oxygen to stay alive When blood flow to the brain is reduced or when oxygen in the blood is too low, brain cells are damaged
Hidrojenle birleşerek suyu oluşturan, atom numarası 8, atom ağırlığı 16, rengi, kokusu ve tadı olmayan, havada beşte bir oranında bulunan bir gaz, müvellidülhumuza (simgesi O)