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(also called a glacial age) a long period of low temperature on Earth, during which large sheets of ice form as glaciers and as ice masses at the poles.
blood vessels that transport deoxygenated blood from the heart to the lungs.
the blood vessel that carries blood from the liver to the inferior vena cava.
a part of the brain that is located below the thalamus having numerous functions, such as: it...
chemicals used as the propellants in aerosol sprays, as coolants in fridges, air conditioners...