geologia power point Flashcards

1
Q

eras geologicas

A

precambrica
paleozoica
mesozoica
cenozoica

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2
Q

tiempos precambricos

A

aparece la vida en forma de organismos unicelulares

se crea la capa de ozono, esto permitira la vida debajo del agua

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3
Q

tiempo paleozoica

A

primeros anfibios
primeros arboles
reptiles y peces

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4
Q

tiempo mesozoica

A

aparecen los dinosaurios pero al final de esta era se extinguen

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5
Q

tiempo cenozoica

A

aparece el hombre

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