Warm front, cold front

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

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The Earth’s magnetic field

The Earth’s magnetic North and South poles are located near the geographic North and South poles.


It is a sedimentary rock made up of loosely structured, rough grains of rock.

Karst region (basic)

Karst formations include dolines and dripstones.

The development of lakes

Standing bodies of water can form in depressions on the surface by both endogenic and exogenic...

Weather fronts

When masses of cold and warm air meet, weather fronts develop.

Mediterranean climate

It is characterised by dry, hot summers and mild winters.

Why is seawater salty?

Water covers about 71% of the Earth’s surface. But why are there two types of water on Earth,...

Aeolian landforms in deserts

Wind, as an external force, plays an important role in shaping deserts.

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