The cost of hydroelectricity is relatively low, making it a competitive source of renewable electricity. The average cost of electricity from a hydro station larger than 10 megawatts is 3 to 5 U.S. cents per kilowatt-hour.t is the most widely used form of renewable energy, accounting for 16 percent of global electricity generation â 3,427 terawatt-hours of electricity production in 2010, and is expected to increase about 3.1% each year for the next 25 years.
Apparently, Leah Messer's daughter has a rare form of muscular dystrophy, a congenital condition that affects the skeletal muscles. MTV viewers have seen Ali struggle with learning to walk, which makes perfect sense considering that her condition directly affects the muscles.
and some types affect cardiac muscle. Duchenne MD. is the most common childhood form of MD, as well as the most common of the muscular dystrophies overall, accounting for approximately 50 percent of all cases. Because inheritance is X-linked recessive (caused by a mutation on the X, or sex, chromosome), Duchenne MD primarily affects boys, although girls and women who carry the defective gene may show some symptoms. About one-third of the cases reflect new mutations and the rest run in families. Sisters of boys with Duchenne MD have a 50 percent chance of carrying the defective gene. Duchenne MD usually becomes apparent during