Sieusoil teaser #25

1. Source: ΕΕΑ
Land
is the continents
and island’s surface
covered by vegetation
or artificial surfaces.
Soil
is the essential
component of land
and includes particles
of rock, sand and clay,
organic material,
air and water.
Different soils exist
with diverse properties.
Topsoil
is the 20 to 30 cm layer
closest to the surface,
with the highest amount
of organic carbon.