
Geological Time Scale
Flashcard
•
History
•
9th Grade
•
Hard
Antonio Rodríguez
FREE Resource
Student preview

37 questions
Show all answers
1.
FLASHCARD QUESTION
Front
¿Cuál es el período de tiempo de la era Hadeana?
Back
4500 ma - 3800 ma
2.
FLASHCARD QUESTION
Front
¿Qué evento significativo ocurrió hace 3800 millones de años?
Back
Aparición de la vida / Rocas sedimentarias
3.
FLASHCARD QUESTION
Front
¿Qué son los estromatolitos y cuándo aparecieron?
Back
Los estromatolitos aparecieron hace 3400 millones de años.
4.
FLASHCARD QUESTION
Front
¿Cuál es el período de tiempo de la era Arcaica?
Back
3800 ma - 2600 ma
5.
FLASHCARD QUESTION
Front
¿Qué evento significativo ocurrió hace 2200 ma?
Back
Formación de hierro bandeado; Oxígeno en la atmósfera.
6.
FLASHCARD QUESTION
Front
¿Qué evento significativo ocurrió hace 2000 millones de años?
Back
Primera extinción masiva.
7.
FLASHCARD QUESTION
Front
¿Cuál es el período de tiempo de la era Proterozoica?
Back
2600 ma - 570 ma
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