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Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.
Icebergs are small or large blocks of frozen freshwater floating in the sea.
One third of the continents is covered with desert. Today, desertification is a growing problem.
A glacier is a large body of ice that forms from snow, and is in constant, slow motion.
The oxygen cycle describes the movement of oxygen within its three main reservoirs.
The area surrounding an inactive or extinct volcano is not necessarily calm. Let’s see the...
An earthquake is one of the most devastating natural phenomena.
Atmospherical nitrogen is bound by bacteria and used by living organisms in the form of...