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leonid
1 day ago
6

At what stage and in what eon did the earth develop seasons?

Biology
2 answers:
vlada-n [1.8K]1 day ago
7 0
La opción B, Eón Precámbrico Tardío. La historia geológica de la Tierra comenzó hace aproximadamente 4.6 mil millones de años, y se puede dividir en dos periodos: a) Supereón Precámbrico y b) Eón Fanerozoico. El supereón Precámbrico abarca el 90 por ciento del tiempo geológico. Inicia hace 4.6 mil millones de años y se extiende hasta el comienzo del Período Cámbrico. a) Eón Hadeano: corresponde al período anterior a la formación de rocas. b) Eón Arcaico: en el transcurso de este eón, las rocas arcaicas metamorfosearon sedimentos de aguas profundas. c) Eón Proterozoico: las rocas encontradas en este eón mostraron una rápida acumulación continental y actividad orogénica. Por esto, la opción B es la correcta.
inysia [1.6K]1 day ago
3 0
C. Era del Precámbrico Tardío. El término eón se refiere a dos o más eras geológicas que componen un eón. Se divide principalmente en cuatro eones: Hadeano, Arcaico, Proterozoico y Fanerozoico. Este último incluye las eras Paleozoica, Mesozoica y Cenozoica. El Cámbrico forma parte de la era Paleozoica, la cual fue un período crucial en la escala de tiempo geológico por el repentino desarrollo de una gran diversidad de filos animales. Durante este tiempo, también apareció la primera planta terrestre, lo que fue un avance prometedor para el crecimiento de vegetación en condiciones estacionales adecuadas.
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