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Soil: What It Is and What It Does (1966)

10 /0
Karru | | 10 minuti | ,

Explains that different kinds of soil are mixtures of sand, clay, and humus; tells how the weathering of rocks helps make soil; includes simple experiments to show the kind of soil in which different plants grow well.

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Subtitle: English France Germany Spain Dutch Korea Japan ETC.

Rilaxx: Jan 01, 1966

Popolarità: 0.438

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Pajjiż: United States of America