Input: Read this: Many pesticides can be grouped into chemical families. Prominent insecticide families include organochlorines, organophosphates, and carbamates. Organochlorine hydrocarbons (e.g., DDT) could be separated into dichlorodiphenylethanes, cyclodiene compounds, and other related compounds. They operate by disrupting the sodium/potassium balance of the nerve fiber, forcing the nerve to transmit continuously. Their toxicities vary greatly, but they have been phased out because of their persistence and potential to bioaccumulate.:239–240 Organophosphate and carbamates largely replaced organochlorines. Both operate through inhibiting the enzyme acetylcholinesterase, allowing acetylcholine to transfer nerve impulses indefinitely and causing a variety of symptoms such as weakness or paralysis. Organophosphates are quite toxic to vertebrates, and have in some cases been replaced by less toxic carbamates.:136–137 Thiocarbamate and dithiocarbamates are subclasses of carbamates. Prominent families of herbicides include phenoxy and benzoic acid herbicides (e.g. 2,4-D), triazines (e.g., atrazine), ureas (e.g., diuron), and Chloroacetanilides (e.g., alachlor). Phenoxy compounds tend to selectively kill broad-leaf weeds rather than grasses. The phenoxy and benzoic acid herbicides function similar to plant growth hormones, and grow cells without normal cell division, crushing the plant's nutrient transport system.:300 Triazines interfere with photosynthesis.:335 Many commonly used pesticides are not included in these families, including glyphosate.
Question: Why was the use of organochlorine hydrocarbons ended?

Output: because of their persistence and potential to bioaccumulate


QUES: Oklahoma is the 20th largest state in the United States, covering an area of 69,898 square miles (181,035 km2), with 68,667 square miles (177847 km2) of land and 1,281 square miles (3,188 km2) of water. It is one of six states on the Frontier Strip and lies partly in the Great Plains near the geographical center of the 48 contiguous states. It is bounded on the east by Arkansas and Missouri, on the north by Kansas, on the northwest by Colorado, on the far west by New Mexico, and on the south and near-west by Texas.

Which state is north of Oklahoma?
What is the answer?
ANS: Kansas


QUES: The English word scientist is relatively recent—first coined by William Whewell in the 19th century. Previously, people investigating nature called themselves natural philosophers. While empirical investigations of the natural world have been described since classical antiquity (for example, by Thales, Aristotle, and others), and scientific methods have been employed since the Middle Ages (for example, by Ibn al-Haytham, and Roger Bacon), the dawn of modern science is often traced back to the early modern period and in particular to the scientific revolution that took place in 16th- and 17th-century Europe. Scientific methods are considered to be so fundamental to modern science that some consider earlier inquiries into nature to be pre-scientific. Traditionally, historians of science have defined science sufficiently broadly to include those inquiries.
Ibn al-Haytham and Roger Bacon were scientists in which time period?

ANS: the Middle Ages


From its discovery in 1846 until the subsequent discovery of Pluto in 1930, Neptune was the farthest known planet. When Pluto was discovered it was considered a planet, and Neptune thus became the penultimate known planet, except for a 20-year period between 1979 and 1999 when Pluto's elliptical orbit brought it closer to the Sun than Neptune. The discovery of the Kuiper belt in 1992 led many astronomers to debate whether Pluto should be considered a planet or as part of the Kuiper belt. In 2006, the International Astronomical Union defined the word "planet" for the first time, reclassifying Pluto as a "dwarf planet" and making Neptune once again the outermost known planet in the Solar System.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What period was Pluto closer to the sun than Neptune? 
Ah, so.. between 1979 and 1999


Question: Because of its limited land area, Bermuda has had difficulty with over-population. In the first two centuries of settlement, it relied on steady human emigration to keep the population manageable.[citation needed] Before the American Revolution more than ten thousand Bermudians (over half of the total population through the years) gradually emigrated, primarily to the Southern United States. As Great Britain displaced Spain as the dominant European imperial power, it opened up more land for colonial development. A steady trickle of outward migration continued. With seafaring the only real industry in the early decades, by the end of the 18th century, at least a third of the island's manpower was at sea at any one time.
Try to answer this question if possible: Who did Spain displace as the dominant European imperial power?
Answer: unanswerable


Problem: On April 29, 2011, the boundaries for the state-run tourism district were set. The district would include heavier police presence, as well as beautification and infrastructure improvements. The CRDA would oversee all functions of the district and will make changes to attract new businesses and attractions. New construction would be ambitious and may resort to eminent domain.
Who would oversee all functions of the new district?
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Answer:
The CRDA