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The weather can be forecast with different meteorological instruments.
The oxygen cycle describes the movement of oxygen within its three main reservoirs.
Did you know that about 75% of the land on our planet is covered with sedimentary rock?
Within the lethal embrace of deserts, life can only flourish because of large springs. Here...
The decisive factor that determines the climate zones of mountains is the altitude above sea level.
Cold and warm fronts are formed where bodies of cold and warm air meet.
Icebergs are small or large blocks of frozen freshwater floating in the sea.
We can observe quite interesting astronomical phenomena when the Earth, the Sun and the Moon align.