Solar radiation

The Sun's rays travel through space without interruption, but once they reach the Earth's atmosphere, it can encounter multiple obstacles.

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Faulting (intermediate)

Vertical forces can break up layers of rock into fault blocks, which then move vertically...

The terrestrial planets

Mercury, Venus, Earth and Mars may have they formed in much the same way, but only the Earth is...

The water cycle (basic)

Water on Earth is in a continuous state of change. The water cycle includes processes...

Aeolian landforms on coasts and steppes

Wind, as an external force, plays an important role in shaping coastal areas and steppes.

Folding (basic)

Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.

Monsoon wind system

In summer, monsoon winds bring heavy rainfall from the sea to the mainland.

Glacier (intermediate)

A glacier is a large body of ice that forms from snow, and is in constant, slow motion.

Altitudinal zonation

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

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