The lower extremity refers to the part of the body from the hip to the toes. The lower extremity includes the hip, knee, and ankle joints, and the bones of the thigh, leg, and foot. Many people refer to the lower extremity as the leg. In fact, the leg is the part of the body between the knee and ankle joints.
Save. Water used in the home comes from surface sources such as lakes and rivers and from groundwater sources such as wells. As of 2010, the average water usage per person averages 70 gallons per day, according to the American Water Works Association.ave. Water used in the home comes from surface sources such as lakes and rivers and from groundwater sources such as wells. As of 2010, the average water usage per person averages 70 gallons per day, according to the American Water Works Association.
In comparison to other countries, Americans use much more water each day than individuals in both developed and undeveloped countries: For example, the average European uses 53 gallons; the average Sub-Saharan citizen, 3-5 gallons. The national average cost of water is $2.00 per 1,000 gallons. The average American family spends about $474 each year on water and sewage charges. American households spend an additional $230 per year on water heating costs.