the soil

Mehr dazu

ORGANIGRAMA DE COCINA

von Miguel Sánchez Cantos

dental caries

von yasmeen riad

Simple Past VS Present Perfect

von Angel Barrera

Characteristics of a healthy forest

von Missy Husemann

THE SOIL

AIR

WATER

MINERAL SUBSTANCES

STRUCTURE

LOAM / SILT

SAND

CLAY

ORGANIC MATTER

Organic matter: substance composed of animal and vegetable material.

HUMUS

Well decomposed organic matter in the soil

microorganisms

Keelback slug, Myriapod, Bacteria, Beetle, Lice(Louse), Mite, Lizard, Shrew, Larvae, Mole, Protozoa, Earth Worm, Nematode, Fungi, Ant.