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El suelo es material suelto erosionado en la superficie terrestre en el que pueden crecer las plantas. Es una mezcla de partículas de roca, minerales, materia orgánica descompuesta, agua y aire.
La roca madre es la capa sólida de roca que se encuentra debajo del suelo.
El humus es una sustancia de color oscuro que se forma cuando las plantas y los animales se descomponen.
Los geólogos observan 3 cosas para identificar el tipo de suelo.
Fertilidad del suelo: Qué tan bien el suelo favorece el crecimiento de las plantas.
Textura del suelo: La sensación y el tamaño de las partículas en el suelo.
La sensación y el tamaño de las partículas en el suelo. Cantidad de ácido en el suelo
O Horizonte Compuesto de material orgánico procedente de restos de plantas y animales.
Un horizonte: compuesto de tierra vegetal.
Horizonte C. B: Compuesto de subsuelo
Horizonte D. C.: Compuesto de roca madre que está comenzando a erosionar y romperse.
Lecho rocoso: Capa sólida de roca
Descomponedores: descomponen los restos de plantas y animales muertos.
Excavadores: Remueven el suelo.
Created by: user-2006727
 

 



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