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Who wouldn’t be familiar with solar-powered calculators or windmills? Let’s have a look at the...
An introduction to the relief and hydrography of China.
This animation presents the states and state capitals of Germany
The evaporation of seawater provides an excellent opportunity for coastal countries to produce salt.
Uranus is the 7th planet from the Sun, a gas giant.
The Earth is composed of several spherical layers.
A presentation of the major administrative units of China.