Mid-latitude cyclone and anticyclone

Cyclones are large areas of circulating air with clouds and precipitation being formed in its centre.

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Karst region (intermediate)

Karst formations include dolines and dripstones.

Weather fronts

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

Karst region (basic)

Karst formations include dolines and dripstones.

Why is seawater salty?

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

Glacier (basic)

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

Natural gas and petroleum

Natural gas and petroleum are among the most important sources of energy and raw materials today.

Where all water disappears The Desert

Földünk felszínének egyhetedét elfoglaló sivatagok kialakulása, éghajlata, felszínformálása.

Types of lakes

Still waters take various forms on the planet. Let’s take a look at how we can group them.

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