The most common cause is an infection of the intestines due to either a virus, bacteria, or parasite; a condition known as gastroenteritis. These infections are often acquired from food or water that has been contaminated by stool, or directly from another person who is infected. It may be divided into three types: short duration watery diarrhea, short duration bloody diarrhea, and if it lasts for more than two weeks, persistent diarrhea. The short duration watery diarrhea may be due to an infection by cholera, although this is rare in the developed world. If blood is present it is also known as dysentery. A number of non-infectious causes may also result in diarrhea, including hyperthyroidism, lactose intolerance, inflammatory bowel disease, a number of medications, and irritable bowel syndrome. In most cases, stool cultures are not required to confirm the exact cause.
What is the most common cause of diarrhea?
an infection of the intestines

The Hummers that Schwarzenegger bought 1992 are so large – each weighs 6,300 lb (2,900 kg) and is 7 feet (2.1 m) wide – that they are classified as large trucks, and U.S. fuel economy regulations do not apply to them. During the gubernatorial recall campaign he announced that he would convert one of his Hummers to burn hydrogen. The conversion was reported to have cost about US$21,000. After the election, he signed an executive order to jump-start the building of hydrogen refueling plants called the California Hydrogen Highway Network, and gained a U.S. Department of Energy grant to help pay for its projected US$91,000,000 cost. California took delivery of the first H2H (Hydrogen Hummer) in October 2004.
What did Schwarzenegger name his plan to build hydrogen refueling stations throughout California?
California Hydrogen Highway Network

Detroit is cited as the birthplace of techno music in the early 1980s. The city also lends its name to an early and pioneering genre of electronic dance music, "Detroit techno". Featuring science fiction imagery and robotic themes, its futuristic style was greatly influenced by the geography of Detroit's urban decline and its industrial past. Prominent Detroit techno artists include Juan Atkins, Derrick May, and Kevin Saunderson. The Detroit Electronic Music Festival, now known as "Movement", occurs annually in late May on Memorial Day Weekend, and takes place in Hart Plaza. In the early years (2000-2002), this was a landmark event, boasting over a million estimated attendees annually, coming from all over the world to celebrate Techno music in the city of its birth.
Where does "Movement" take place?
Hart Plaza