ADHD begins in childhood and often lasts into adulthood. As many as 2 out of every 3 children with ADHD continue to have symptoms as adults. Symptoms of ADHD can differ from person to person, but there are three basic types of ADHD. Each one is identified by the symptoms of hyperactivity, impulsivity, and inattention.
Convert acre-feet to other major units of volume. A unit used to measure volumes of water, typically for use in irrigation. One acre-foot is the amount of water that would cover an acre of land to a depth of 1 foot, = 43,560 cubic feet, approximately 325,851 U.S. gallons (approximately 1233.48 cubic meters).
An acre-foot is the amount of water required to cover 1 acre to a depth of 1 foot, or approximately 326,000 gallons. The reservoir will store the entire average flow of the river for 2 years. That is enough water to cover the State of Pennsylvania to a depth of one foot.