Article: After the American Revolutionary War, the number and proportion of free people of color increased markedly in the North and the South as slaves were freed. Most northern states abolished slavery, sometimes, like New York, in programs of gradual emancipation that took more than two decades to be completed. The last slaves in New York were not freed until 1827. In connection with the Second Great Awakening, Quaker and Methodist preachers in the South urged slaveholders to free their slaves. Revolutionary ideals led many men to free their slaves, some by deed and others by will, so that from 1782 to 1810, the percentage of free people of color rose from less than one percent to nearly 10 percent of blacks in the South.

Question: In 1810, how many black people were considered free?
Ans: nearly 10 percent


Article: From his eastern origin Apollo brought the art of inspection of "symbols and omina" (σημεία και τέρατα : semeia kai terata), and of the observation of the omens of the days. The inspiration oracular-cult was probably introduced from Anatolia. The ritualism belonged to Apollo from the beginning. The Greeks created the legalism, the supervision of the orders of the gods, and the demand for moderation and harmony. Apollo became the god of shining youth, the protector of music, spiritual-life, moderation and perceptible order. The improvement of the old Anatolian god, and his elevation to an intellectual sphere, may be considered an achievement of the Greek people.

Question: Which group created the legalism, the supervision of the orders of the gods, and the demand for moderation and harmony?
Ans: The Greeks


Article: A person can be exposed to uranium (or its radioactive daughters, such as radon) by inhaling dust in air or by ingesting contaminated water and food. The amount of uranium in air is usually very small; however, people who work in factories that process phosphate fertilizers, live near government facilities that made or tested nuclear weapons, live or work near a modern battlefield where depleted uranium weapons have been used, or live or work near a coal-fired power plant, facilities that mine or process uranium ore, or enrich uranium for reactor fuel, may have increased exposure to uranium. Houses or structures that are over uranium deposits (either natural or man-made slag deposits) may have an increased incidence of exposure to radon gas. The Occupational Safety and Health Administration (OSHA) has set the permissible exposure limit for uranium exposure in the workplace as 0.25 mg/m3 over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 0.2 mg/m3 over an 8-hour workday and a short-term limit of 0.6 mg/m3. At levels of 10 mg/m3, uranium is immediately dangerous to life and health.

Question: What is the OSHA uranium exposure limit for an 8-hour workday?
Ans: 0.25 mg/m3


Article: While it is possible to write computer programs as long lists of numbers (machine language) and while this technique was used with many early computers, it is extremely tedious and potentially error-prone to do so in practice, especially for complicated programs. Instead, each basic instruction can be given a short name that is indicative of its function and easy to remember – a mnemonic such as ADD, SUB, MULT or JUMP. These mnemonics are collectively known as a computer's assembly language. Converting programs written in assembly language into something the computer can actually understand (machine language) is usually done by a computer program called an assembler.

Question: A computer's assembly language is known as what?
Ans:
basic instruction can be given a short name that is indicative of its function