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Question 1: The concept of "peak water" is analogous to what other "peak" term that refers to the maximum rate of extraction of petroleum?
Question 2: How old is the Aboriginal rock art in Australia's Kakadu National Park?
Aboriginal rock art in Kakadu National Park dates back to over 20,000 years ago, making it one of the oldest examples of rock art in the world. The park is located in the Northern Territory and is both a UNESCO World Heritage site and a popular tourist destination.
Question 3: If someone is arrested and charged with a crime, what legal right ensures they are considered innocent until proven guilty in a court of law?
The presumption of innocence is a fundamental principle in criminal law that states a person accused of a crime is considered innocent until proven guilty beyond a reasonable doubt in a court of law. This legal right places the burden of proof on the prosecution to prove the accused's guilt, rather than the accused having to prove their innocence.
Question 4: What is the name of the chemical element with the symbol Hg?
Mercury is the only metallic element that is liquid at standard conditions for temperature and pressure. The element's symbol "Hg" comes from its Latin name hydrargyrum, meaning "water-silver".
Question 5: Why do Jewish men wear a kippah or yarmulke?
Jewish men traditionally wear a kippah or yarmulke as a sign of respect, humility and reverence before God. It is a reminder that there is always something above them, and it is meant to inspire respectful behavior.
Question 6: Who was the lead defense attorney in the famous O.J. Simpson murder trial?
Johnnie Cochran was the lead defense attorney in the highly publicized O.J. Simpson murder trial in 1995. He famously uttered the phrase "If it doesn't fit, you must acquit" in reference to a glove found at the crime scene that did not appear to fit Simpson's hand when he tried it on in court. Cochran's skill and persuasive arguments are often credited as key factors in Simpson's ultimate acquittal.
Question 7: How many sides does an icosahedron have?
An icosahedron is a polyhedron with 20 faces. It is one of the five Platonic solids, along with the tetrahedron, cube, octahedron, and dodecahedron. The name comes from Ancient Greek εἴκοσι (eíkosi), meaning 'twenty'.
Question 8: How many sides does a decagon have?
A decagon is a type of polygon that has ten sides and ten angles. The term comes from the Greek words "deka", which means ten, and "gonia", which means corner or angle.
Question 9: When was the Empire State Building in New York City completed?
The Empire State Building, an iconic 102-story skyscraper in Midtown Manhattan, New York City, was completed in 1931. It held the title of world's tallest building for nearly 40 years until the completion of the World Trade Center's North Tower in 1970.
Question 10: Which actor played the character Iron Man in the Marvel Cinematic Universe films?
Robert Downey Jr. portrayed the character of Tony Stark/Iron Man in the Marvel Cinematic Universe from 2008 to 2019, appearing in a total of ten films, including the Iron Man trilogy and the Avengers series.
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"Peak water" is a concept that refers to the point at which the availability of freshwater reaches its maximum rate of use, after which the production and availability decline. The idea is derived from "peak oil," which describes the point in time when the maximum extraction of petroleum is reached, leading to a terminal decline in production rates. Despite being a concept, there's no widespread consensus that "peak water" has been reached globally, though some regions experience significant water stress.