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 (basic)

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

Tide

The rise and drop of sea levels caused by the gravitational force of the Moon.

The desert

One third of the continents is covered with desert. Today, desertification is a growing problem.

Continental drift

In the past, a number of geologists tried to explain why the outlines of continents seem to fit...

Seafloor map

The boundaries of tectonic plates can be seen on the seafloor.

The soil

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

Factors of warming

The duration of solar radiation, the angle of the Sun's rays and the surface albedo all have an...

Glacier (intermediate)

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

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