Chinese 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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Pangea was a mega continent that existed throughout the late Paleozoic and early Mesozoic eras. It gathered from earlier continental parts about 335 million years ago, and it started to split apart about 175 million years ago. Much of Pangaea was in the southern hemisphere enclosed by a superocean, Panthalassa, in opposition to the modern Earth and its concentration of continental mass. Thus Pangaea was the most recent mega continent to have existed and the first to be reconstructed by scientists.
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Europe’s anthropological landscape reflects the complex history of human migrations and interactions on the continent. While certain phenotypic traits may be more prevalent in specific regions, the diversity observed across Europe serves as a testament to its rich cultural and genetic heritage.
Read MoreHistorically, grasslands occupied about one billion acres in the United States, roughly fifty per cent of the landmass of the 48 contiguous states. The considerable preponderance of the meadows was found west of the Mississippi River. But, some indigenous grasslands were spread throughout the Midwestern and Southeastern U.S. States.
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Argentina covers an area of 2,780,400 square kilometers or 1,073,500 square miles of the southern portion of the South American continent. Argentina is the 2nd-largest country in South America after Brazil, the 4th-largest country in the Americas, and the 8th-largest country globally.
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