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).
There are 7.48052 gallons of water in a cubic foot. Taking all of this into consideration, one acre-foot is roughly equivalent to 325,851 gallons. (43,560 square feet of pond surface x 1 foot average depth = 43,560 cubic feet x 7.48052 gallons per cubic foot = 325,851 gallons).