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LA TIERRA, BASE DEL DESARROLLO DEL HOMBRE

DATOS GENERALES DE LA TIERRA

La Tierra es el tercer planeta más cercano que gira alrededor del sol.

Su nombre proviene del latín Terra que era una deidad romana equivalente a la diosa griega Gea, diosa de la feminidad y de la fecundidad.

La Tierra se formó hace unos 4550 millones de años y la vida surgió unos mil millones de años después (hace 3500 millones de años)

La Tierra tiene un radio en el ecuador de unos 6300 km

La Tierra tiene una superficie de unos 510 millones de kilómetros cuadrados, de los cuales:

         1.-El 29% son tierra (149 millones de kilómetros cuadrados)

         2.-El 71% son agua (361 millones de kilómetros cuadrados)

PROXIMOS SUBTEMAS DE LA GUIA DE LA UNIVERDAD:

También están disponibles nuestras guías en formato pdf.

error: Contenido Protegido !!
Curso para la UNAM

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