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  2. Organ trade - Wikipedia

    en.wikipedia.org/wiki/Organ_trade

    Organ trade (also known as the blood market or the red market) is the trading of human organs, tissues, or other body products, usually for transplantation. [1] [2] According to the World Health Organization (WHO), organ trade is a commercial transplantation where there is a profit, or transplantations that occur outside of national medical systems.

  3. United States dollar - Wikipedia

    en.wikipedia.org/wiki/United_States_dollar

    The decline in the value of the U.S. dollar corresponds to price inflation, which is a rise in the general level of prices of goods and services in an economy over a period of time. [85] A consumer price index (CPI) is a measure estimating the average price of consumer goods and services purchased by households.

  4. Ethanol - Wikipedia

    en.wikipedia.org/wiki/Ethanol

    Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic compound with the chemical formula CH 3 CH 2 OH.It is an alcohol, with its formula also written as C 2 H 5 OH, C 2 H 6 O or EtOH, where Et stands for ethyl.

  5. Age of Discovery - Wikipedia

    en.wikipedia.org/wiki/Age_of_Discovery

    They boosted regional trade and production, caused a supply shock in Eurasia and led to price spikes in Europe in the early 15th century. [ 71 ] The tributary relations promoted during the voyages manifested a trend toward cross-regional interconnections and early globalization in Asia and Africa. [ 72 ]

  6. COVID-19 - Wikipedia

    en.wikipedia.org/wiki/COVID-19

    According to articles published in July 2022 in Science, virus transmission into humans occurred through two spillover events in November 2019 and was likely due to live wildlife trade on the Huanan wet market in the city of Wuhan (Hubei, China). [402] [403] [404] Doubts about the conclusions have mostly centered on the precise site of ...

  7. Saudi Arabia - Wikipedia

    en.wikipedia.org/wiki/Saudi_Arabia

    Saudi Arabia, [d] officially the Kingdom of Saudi Arabia (KSA), [e] is a country in West Asia.Located in the centre of the Middle East, it covers the bulk of the Arabian Peninsula and has a land area of about 2,150,000 km 2 (830,000 sq mi), making it the fifth-largest country in Asia, the largest in the Middle East, and the 12th-largest in the world. [15]

  8. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    The usefulness of the barcode required the adoption of expensive scanners by a critical mass of retailers while manufacturers simultaneously adopted barcode labels. Neither wanted to move first and results were not promising for the first couple of years, with Business Week proclaiming "The Supermarket Scanner That Failed" in a 1976 article.

  9. Abacus - Wikipedia

    en.wikipedia.org/wiki/Abacus

    In the left part were four beads. Beads in the first row have unitary values (1, 2, 3, and 4), and on the right side, three beads had values of 5, 10, and 15, respectively. In order to know the value of the respective beads of the upper rows, it is enough to multiply by 20 (by each row), the value of the corresponding count in the first row.