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MUESTRA NO COMERCIAL Sociales
Valoración
Actividad 5
1. Imagina que el núcleo de la Tierra se enfriara ¿que crees qué pararía
con el resto del planeta?
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2. Escribe la importancia de la existencia de cada una de las capas
externas de la Tierra que se señalan a continuación.
• Atmósfera.
• Biosfera.
• Hidrósfera.
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121
Grado 4°
