ANSWERS 100% CORRECT!!
, activated carbon - ANSWER Particles or granules that have a high capacity to
selectively remove certain trace and soluble materials from water
adsorption - ANSWER the gathering of a gas, liquid or dissolved substance on the
surface or interface zone of another material
aesthetics - ANSWER aspects of drinking water quality that are perceivable by the
senses
air gap - ANSWER an open vertical drop, or vertical empty space that separates a
drinking water supply; prevents the contamination of drinking water by back
siphonage or backflow
alternating current - ANSWER an electric current that reverses its direction at regular
intervals
amperage - ANSWER the strength of an electric current measured in amperes
ampere - ANSWER the current produced by an electromotive force of one volt acting
through a resistance of one ohm
annular space - ANSWER a ring-shaped space located between two circular objects
such as two pipes or the space between the casing and the well wall
anode - ANSWER the positive pole or electrode of an electrolytic system
aquifer - ANSWER a natural underground layer of porous water-bearing materials
backflow - ANSWER a reverse flow condition
backsiphonage - ANSWER a form of backflow caused by a negative or below
atmospheric pressure within a water system