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Ppt5

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  • 1. DESCOBRIR A TERRA 7
  • 2. Com base em acontecimentos registados nas rochas e fósseis, os geólogos dividiram a história da Terra em: DESCOBRIR A TERRA 7 EERRAA PPAALLEEOOZZOOIICCAA PPRRÉÉ--CCÂÂMMBBRRIICCOO EERRAA MMEESSOOZZOOIICCAA EERRAA CCEENNOOZZOOIICCAA
  • 3. PRÉ-CÂMBRICO (DE 4600 M.a. a 545 M.a.) Inicia-se com a formação da Terra. Há cerca de 700 M.a., os mares seriam povoados por animais de corpo mole e sem concha. DESCOBRIR A TERRA 7
  • 4. ERA PALEOZOICA (DE 542 M.a. a 251 M.a.) É considerada aa EErraa ddaass TTrriilloobbiitteess.. Pistas de locomoção de trilobites. DESCOBRIR A TERRA 7
  • 5. ERA MESOZOICA (DE 251 M.a a 65 M.a.) ÉÉ ccoonnssiiddeerraaddaa aa EErraa ddooss DDiinnoossssaauurrooss.. DESCOBRIR A TERRA 7
  • 6. ERA CENOZOICA (DE 65 M.a ATÉ HOJE) É a EErraa ddooss mmaammííffeerrooss ee ddaass aavveess.. NNeessttaa eerraa,, ssuurrggee oo HHoommeemm.. DESCOBRIR A TERRA 7
  • 7. DESCOBRIR A TERRA 7