Information: - Marco Enrico Bossi (April 25, 1861 in Salo February 20, 1925) was an Italian organist, composer, improviser and pedagogue. - Salo is a town and "comune" in the Province of Brescia in the region of Lombardy (northern Italy) on the banks of Lake Garda, on which it has the longest promenade. The city was the seat of government of the Italian Social Republic from 1943 to 1945, with the ISR often being called the "Republic of Salo" ("Repubblica di Salo" in Italian). - Costante Adolfo Bossi ( 1876 -- 1953 ) was an Italian organist , composer and teacher . He was the brother of Marco Enrico Bossi and Pietro Bossi . He taught at the Milan Conservatory . - A teacher (also called a school teacher or, in some contexts, an educator) is a person who helps others to acquire knowledge, competences or values. Given the information above, choose from the list below the object entity that exhibits the relation 'country of citizenship' with the subject 'costante adolfo bossi'. Choices: - italy - lombardy - teacher
italy

*Question*
Information: - Hydrazine is an inorganic compound with the chemical formula (also written ). A simple pnictogen hydride, it is a colorless flammable liquid with an ammonia-like odor. Hydrazine is highly toxic and dangerously unstable unless handled in solution. , approximately 120,000 tons of hydrazine hydrate (corresponding to a 64% solution of hydrazine in water by weight) were manufactured worldwide per year. Hydrazine is mainly used as a foaming agent in preparing polymer foams, but significant applications also include its uses as a precursor to polymerization catalysts and pharmaceuticals. Additionally, hydrazine is used in various rocket fuels and to prepare the gas precursors used in air bags. Hydrazine is used within both nuclear and conventional electrical power plant steam cycles as an oxygen scavenger to control concentrations of dissolved oxygen in an effort to reduce corrosion. Anhydrous hydrazine is corrosive towards glass, in a manner similar to hydrofluoric acid. - Nitrogen is a chemical element with symbol N and atomic number 7. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772. Although Carl Wilhelm Scheele and Henry Cavendish had independently done so at about the same time, Rutherford is generally accorded the credit because his work was published first. The name "nitrogen" was suggested by Jean-Antoine-Claude Chaptal in 1790, when it was found that nitrogen was present in nitric acid and nitrates; this name derives from the Greek roots "nitre" and - "to form". Antoine Lavoisier suggested instead the name "azote", from the Greek "no life", as it is an asphyxiant gas; his name is instead used in many languages, such as French, Russian, and Turkish, and appears in the English names of some nitrogen compounds such as hydrazine, azides and azo compounds. - Johan Gustav Christoffer Thorsager Kjeldahl (16 August 1849 18 July 1900), was a Danish chemist who developed a method for determining the amount of nitrogen in certain organic compounds using a laboratory technique which was named the Kjeldahl method after him. - Nitrate is a polyatomic ion with the molecular formula and a molecular mass of 62.0049g/mol. Nitrates also describe the organic functional group RONO. These nitrate esters are a specialized class of explosives. - Daniel Rutherford (3 November 1749 15 December 1819) was a Scottish physician, chemist and botanist who is most famous for the isolation of nitrogen in 1772. - Carl Wilhelm Scheele (9 December 1742 21 May 1786) was a Swedish Pomeranian and pharmaceutical chemist. Isaac Asimov called him "hard-luck Scheele" because he made a number of chemical discoveries before others who are generally given the credit. For example, Scheele discovered oxygen (although Joseph Priestley published his findings first), and identified molybdenum, tungsten, barium, hydrogen, and chlorine before Humphry Davy, among others. Scheele discovered organic acids tartaric, oxalic, uric, lactic, and citric, as well as hydrofluoric, hydrocyanic, and arsenic acids. He preferred speaking German to Swedish his whole life, as German was commonly spoken among Swedish pharmacists. - Antoine-Laurent de Lavoisier (also Antoine Lavoisier after the French Revolution 26 August 17438 May 1794;) was a French nobleman and chemist central to the 18th-century chemical revolution and had a large influence on both the history of chemistry and the history of biology. He is widely considered in popular literature as the "father of modern chemistry". - Henry Cavendish FRS (10 October 1731 24 February 1810) was a British natural philosopher, scientist, and an important experimental and theoretical chemist and physicist. Cavendish is noted for his discovery of hydrogen or what he called "inflammable air". He described the density of inflammable air, which formed water on combustion, in a 1766 paper "On Factitious Airs". Antoine Lavoisier later reproduced Cavendish's experiment and gave the element its name. - Johan Gustav Christoffer Thorsager Kjeldahl ( Danish pronunciation : ( johan kldl ) 1849 -- 1900 ) , was a Danish chemist who developed a method for determining the amount of nitrogen in certain organic compounds using a laboratory technique which was named the Kjeldahl method after him . - The Kjeldahl method or Kjeldahl digestion in analytical chemistry is a method for the quantitative determination of organic nitrogen in chemical substances like ammonia. This method was developed by Johan Kjeldahl in 1883. - A chemical element or element is a species of atoms having the same number of protons in their atomic nuclei (i.e. the same atomic number, "Z"). There are 118 elements that have been identified, of which the first 94 occur naturally on Earth with the remaining 24 being synthetic elements. There are 80 elements that have at least one stable isotope and 38 that have exclusively radioactive isotopes, which decay over time into other elements. Iron is the most abundant element (by mass) making up Earth, while oxygen is the most common element in the Earth's crust. Given the information above, choose from the list below the object entity that exhibits the relation 'date of birth' with the subject 'johan kjeldahl'. Choices: - 10 - 10 october 1731 - 120 - 16 august 1849 - 1731 - 1749 - 1766 - 1772 - 1786 - 1790 - 1794 - 18 - 1819 - 1849 - 1883 - 3 - 38 - 62 - 7 - 80 - 9 december 1742 - 94
**Answer**
16 august 1849