The history of Africa starts with the appearance of archaic humans at least 200,000 years ago in East Africa. It continues uninterrupted into today as a patchwork of diverse and developing nation-states. The oldest known states in Africa are the Kingdom of Kush, Ancient Egypt, the Sahel, and the Maghreb.
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The sea level has increased 15 to 20 cm (6 to 8 inches) in the latest 100 years. The process of raising the water level of the world’s oceans continues. If all the ice on our planet were to melt, the sea level would rise about 70 m (230 ft).
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Today almost 8 billion people live on our planet. Half the world’s population lives in 7 countries: China, India, United States, Indonesia, Brazil, Pakistan, and Nigeria. More than half of the world’s population nowadays residing in urban areas.
Read MoreAfrica is the second-largest and second-most-populous continent on our planet. About 30.3 million km2 (11.7 mln sq mi), including adjacent islands, covers 6% of Earth’s total surface area and 20.4% of its total land area. With 1.2 billion people as of 2016, it accounts for about 16% of the world’s human population.
Read MoreThe Mississippi has the 4th largest basin globally and ranks as the 4th longest river and 15th biggest river by the volumetric flow rate of water on the planet.
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The British Empire was the most extensive empire by area. The area of the empire at its territorial peak was 35.5 million square kilometers (13.7 million square miles). British Empire has invaded about 90% of the countries around the earth.
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Almost 500 tonnes of meteoritic wreckage fall to the planet each day, much of it as little cosmic dust and micrometeorites that sink into the ocean. About 500 meteorites of moderate size would strike our planet’s surface each year, of which 150 would fall on the landmass, and less than ten would be found.
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Gender Inequality Index measures equality between men and women. It is composed of indicators on reproductive health, empowerment, and the labor market.
Read MoreChinese is a group of language varieties spoken by the ethnic Han Chinese majority and many minority ethnic groups in Greater China. About 1.3 billion people (or approximately 16% of the world’s population) speak Chinese as their first language.
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Solar System appeared 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast bulk of the Solare system’s mass is in the Sun, with most of the remaining mass contained in Jupiter. This planet and Saturn are gas giants, mainly formed of hydrogen and helium; Uranus and Neptune are ice giants. The four smaller innermost planets, Mercury, Venus, Earth, and Mars, are terrestrial, being principally formed of rock and metal.
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