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The difference between the temperature of the polar and equatorial zones causes...
This video presents the different stages of coal formation.
Is the tundra region as cold and deserted as many people think?
The rise and drop of sea levels caused by the gravitational force of the Moon.
Water on Earth is in a continuous state of change. The water cycle includes processes...
Bauxite is a raw material in aluminum production. Watch this video to learn how the well-known...
Did you know that about 75% of the land on our planet is covered with sedimentary rock?
We can observe quite interesting astronomical phenomena when the Earth, the Sun and the Moon align.