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The Andes were formed by the collision of two tectonic plates, one oceanic and one continental.
The deepest lake in Earth was formed in a rift valley created by the Baikal Rift Zone.
The El Niño phenomenon has a great effect on the Earth's climate.
Deserts cover nearly one-seventh of the Earth's land surface.
The flora and fauna of the savannahs adapt to the climate.
Fold the paper here and there, chip one or two with the scissors. This is all you need to create something fantastic that looks like a snowflake.
A cuboid is a polyhedron with six rectangular faces.
This animation demonstrates the different nets of a cuboid and includes a game.
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