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Stack #4646781

QuestionAnswer
escasez Todas las sociedades deben abordar el problema de que los recursos son limitados y las necesidades y deseos son ilimitados.
interdependencia Debido a que vivimos en un solo planeta y no podemos satisfacer todas nuestras necesidades, dependemos de otros para obtener soluciones mutuamente beneficiosas a problemas comunes.
trueque silencioso un proceso en el que las personas intercambian bienes sin contactarse directamente entre sí.
Sáhara Un gran desierto caluroso en el norte de África que cubre alrededor de 3,5 millones de millas cuadradas.
Sahel una zona semidesértica, al sur del Sahara, donde crecen hierbas cortas, pequeños arbustos y algunos árboles
sabana una zona de vegetación de pastos altos y árboles dispersos, con una larga temporada de lluvias
Río Níger El río más largo de África Occidental y una especie de ruta comercial en los primeros tiempos.
Created by: user-1968599
 

 



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