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  2. Pan evaporation - Wikipedia

    en.wikipedia.org/wiki/Pan_evaporation

    In the United States, the National Weather Service has standardized its measurements on the Class A evaporation pan, a cylinder with a diameter of 47.5 in (120.7 cm) that has a depth of 10 in (25 cm). The pan rests on a carefully leveled, wooden base and is often enclosed by a chain link fence to prevent animals drinking from it.

  3. Polyacrylonitrile - Wikipedia

    en.wikipedia.org/wiki/Polyacrylonitrile

    Polyacrylonitrile (PAN) is a synthetic, semicrystalline organic polymer resin, with the linear formula (CH 2 CHCN) n. [2] Almost all PAN resins are copolymers with acrylonitrile as the main monomer .

  4. Aral AG - Wikipedia

    en.wikipedia.org/wiki/Aral_AG

    Aral AG (previously Veba Öl AG) is a German oil company established in 1898 as Westdeutsche Benzol-Verkaufs-Vereinigung GmbH (West German Benzene Marketing Corporation). The company is currently owned by British conglomerate BP [ 1 ] after it was purchased in 2002.

  5. Aral Sea - Wikipedia

    en.wikipedia.org/wiki/Aral_Sea

    The North Aral Sea Project's main initiative is the construction of a dam across the Berg Strait, a deep channel which connects the North Aral Sea to the South Aral Sea. The Kok-Aral Dam is 13 kilometres (8 miles) long and has capacity for over 29 cubic kilometres of water to be stored in the North Aral Sea, whilst allowing excess to overflow ...

  6. Environmental impact of irrigation - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    This may negatively affect the health of the population at the tail-end of the river basin and downstream of the irrigation scheme, as well as the ecological balance. The Aral Sea, for example, is seriously polluted by drainage water.

  7. Volatile organic compound - Wikipedia

    en.wikipedia.org/wiki/Volatile_organic_compound

    Volatile organic compounds (VOCs) are organic compounds that have a high vapor pressure at room temperature. [1] They are common and exist in a variety of settings and products, not limited to house mold, upholstered furniture, arts and crafts supplies, dry cleaned clothing, and cleaning supplies. [2]

  8. Permanent account number - Wikipedia

    en.wikipedia.org/wiki/Permanent_account_number

    The PAN (or PAN number) is a ten-character long alpha-numeric unique identifier. The PAN structure is as follows: Fourth character [P — Individual or Person] Example: AAAPZ1234C. The first five characters are letters (in uppercase by default), followed by four numerals, and the last (tenth) character is a letter.

  9. Wikipedia:Vital articles/List of all articles - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Vital_articles/...

    · The Nutcracker · The Odd Couple (play) · The Office (American TV series) · The Old Man and the Sea · The Onion · The Open Championship · The Open Society and Its Enemies · The Oprah Winfrey Show · The Oregon Trail (1971 video game) · The Origins of Totalitarianism · The Passion of Joan of Arc · The Peacock Room · The Pearl Island ...