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7 hours ago · It is estimated that 99 percent of all species that ever lived on Earth, over five billion, [18] have gone extinct. [19] [20] Estimates on the number of Earth's current species range from 10 million to 14 million, [21] of which about 1.2 million are documented, but over 86 percent have not been described.
7 hours ago · Sun. The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, [18] [19] heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
7 hours ago · Tennessee is the 36th-largest by area and the 15th-most populous of the 50 states. Tennessee is geographically, culturally, and legally divided into three Grand Divisions of East, Middle, and West Tennessee. Nashville is the state's capital and largest city, and anchors its largest metropolitan area.
1 day ago · Conservatism in the United States is based on a belief in individualism, traditionalism, republicanism, and limited federal governmental power in relation to U.S. states. [1] [2] It is one of two major political ideologies of the United States. Conservative and Christian media organizations and American conservative figures are influential, and American conservatism is a large and mainstream ...
1 day ago · Copper is a chemical element; it has symbol Cu (from Latin cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color.
1 day ago · White MexicansMexicanos blancos. White Mexicans ( Spanish: Mexicanos blancos) are individuals in Mexico who identify as white, often due to their physical appearance or their recognition of European ancestry. [8] [failed verification] The Mexican government conducts ethnic censuses that allow individuals to identify as "White," [9] but the ...
