Resources and Sustainability

The loose mixture of weathered rock material, organic material, water and gas on the surface

of the Earth

• Soil Leaching

• Soil Profile

• Soil

• Soil erosion

These are different layers of soil which are visible on a side-view.

• Relief

• Overstocking

• Horizon

• Soil Pofile

Creatures that live in the soil e.g. Termites, millipedes, earthworms and ants.

• Micro-organisms

• Humus

• Bacteria

• Soil animals

The removal of the entire topsoil as a result of heavy rains is

• Rill Erosion

• Water Erosion

• Gully Erosion

• Sheet Erosion

Small bacteria and fungi that

decomposes remains of plant and animal.

• Sediments

• Micro-organisms

• Humus

• bactericidal

Occurs when the top layer of soil is forcefully removed from the land by water, wind or ice.

• Soil Erosion

• Exfoliating

• Riparian Erosion

• Weathering

The washing/draining down of minerals

through the soil profile

• Alleviation

• Regolith

• Eluviations

• Solum

Refers to the large piece of rock that gave birth into the soil particles or bedrock.

• Soil Profile

• Parent Material

• Decomposition

• Batholith

Other methods of preventing soil erosion includes:

• Deforestation

• Overgrazing

• Monoculture

• Reforestation

The practice of growing different crops at different times on the same land.

• Agriculture

• Contour ploughing

• Monoculture

• Crop rotation