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  2. Scale (music) - Wikipedia

    en.wikipedia.org/wiki/Scale_(music)

    In music theory, a scale is any set of musical notes ordered by fundamental frequency or pitch. A scale ordered by increasing pitch is an ascending scale, and a scale ordered by decreasing pitch is a descending scale. Often, especially in the context of the common practice period, most or all of the melody and harmony of a musical work is built ...

  3. Languages of Africa - Wikipedia

    en.wikipedia.org/wiki/Languages_of_Africa

    There are approximately 375 Afroasiatic languages spoken by over 400 million people. The main subfamilies of Afroasiatic are Berber, Chadic, Cushitic, Omotic, Egyptian and Semitic. The Afroasiatic Urheimat is uncertain. The family's most extensive branch, the Semitic languages (including Arabic, Amharic and Hebrew among others), is the only ...

  4. Tanzania - Wikipedia

    en.wikipedia.org/wiki/Tanzania

    Tanzania, officially the United Republic of Tanzania, is a country in East Africa within the African Great Lakes region. It is bordered by Uganda to the northwest; Kenya to the northeast; the Indian Ocean to the east; Mozambique and Malawi to the south; Zambia to the southwest; and Rwanda, Burundi, and the Democratic Republic of the Congo to the west.

  5. Human evolution - Wikipedia

    en.wikipedia.org/wiki/Human_evolution

    Human evolution. The hominoids are descendants of a common ancestor. Human evolution is the evolutionary process within the history of primates that led to the emergence of Homo sapiens as a distinct species of the hominid family that includes all the great apes. [1]

  6. Time in Africa - Wikipedia

    en.wikipedia.org/wiki/Time_in_Africa

    Africa. Africa, the world's second-largest and second-most populous continent, spans across six different time zone offsets from Coordinated Universal Time (UTC): UTC−01:00 to UTC+04:00. [2] [3] As Africa straddles the equator and tropics, there is little change in daylight hours throughout the year [4] and as such daylight saving time is ...

  7. Muslim population growth - Wikipedia

    en.wikipedia.org/wiki/Muslim_population_growth

    Muslim population growth. Between 2015 and 2060, Muslim population is projected to increase by 70%. [1] This compares with the 32% growth of world population during the same period. [2] According to a study published in 2011 by Pew Research, whilst there is a lack of reliable data, religious conversion might have no net impact on the Muslim ...

  8. Mercator projection - Wikipedia

    en.wikipedia.org/wiki/Mercator_projection

    Mercator projection. Mercator projection of the world between 85°S and 85°N. Note the size comparison of Greenland and Africa. The Mercator projection with Tissot's indicatrix of deformation. Mercator 1569 world map ( Nova et Aucta Orbis Terrae Descriptio ad Usum Navigantium Emendate Accommodata) showing latitudes 66°S to 80°N.

  9. Indian rupee - Wikipedia

    en.wikipedia.org/wiki/Indian_Rupee

    In 1850, the official conversion rate between the pound sterling and the rupee was £0 / 2s / 0d (or £1:₹10), while between 1899 and 1914, the official conversion rate was set at £0 to 1s to 4d (or £1:₹15). However, this was just half of market exchange rates between 1893 and 1917.