How We Use Soil

Describes what soil is made of and the many uses people make of it.

Soil
By Karen Bryant-Mole
Simple activities which investigate scientific principles and encourage scientific observation, with bold headlines for very young children and a short text for further reading.
Soil Biology in Relation to Sustainable Land Use: Report from a NKJ/SNS-seminar 1998

... sustainability is not at first hand an environmental problem but a long - term resource problem . If the concept of ... five thousand years ago was a sustainable system . It was an ecosystem with low human impact . On a global scale ...