→ Formation Of Soil 12/4/15 → Empezar lección / Descargar tarjetas en MP3

término		definición
a mixture of sand, silt, soil, clay, rock and humus (plant and animal remains) empezar lección		soil
when forces on Earth breaks rocks apart or wear rock away empezar lección		weathering
the uppermost 5 to 20 cm of soil with a high concentration of organic matter and microorganisms where almost all of the biological activity in soil takes place empezar lección		topsoil
easily broken down by biological activity, especially bacteria in the soil empezar lección		biodegradable
to break down into smaller, more basic parts empezar lección		decompose

Formation of Soil 12/4/15