Tuberculosis (TB) Tuberculosis (TB) Active tuberculosis (TB) is very contagious. The World Health Organization (WHO) estimates that one-third of the world's population is infected with the bacteria that cause TB.
With an average elevation of 6,800 feet, Colorado is the highest state in the United States. A mountain lake outside of the skiers dreamland of Aspen, Colorado. The US is bordered to the north by Canada and Mexico to the South. With 50 states of varied sizes, US is considered the largest nation in America.
The Arkansas City in Arkansas has an elevation of 135 feet and the Clock tower at the Desha County Courthouse is surely the highest point in town.  * The one in Kansas is 1,1â¦19 feet above sea level. 2 people found this useful.