Altitudinal zonation

In mountainous areas the climate, soil properties, the flora and fauna change depending on elevation.

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The weather forecast

The weather can be forecast with different meteorological instruments.

The Tundra: a green-edged icy wasteland

Is the tundra region as cold and deserted as many people think?

Layers of the ocean

Physical properties, as well as the flora and fauna of the ocean change with depth.

The soil

Soil is the loose, uppermost, fertile layer of the Earth’s crust.

The phosphorus cycle

The phosphorus cycle describes the movement of phosphorus through the lithosphere,...

Limestone

It is a sedimentary rock with high calcium carbonate content.

Greenhouse effect

Human activity increases the greenhouse effect and leads to global warming.

Warm front, cold front

Cold and warm fronts are formed where bodies of cold and warm air meet.

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