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The evaporation of seawater provides an excellent opportunity for coastal countries to produce salt.
Lunar eclipses occur when the Moon passes through the shadow cone of Earth
Dry land on the surface of Earth is divided into continents which are separated by oceans.
Neptune is the outermost planet of the Solar System, the smallest of the gas giants.
The Earth is divided into 24 time zones. Standard time is the time used within time zones.
The International Space Station is a habitable satellite built with the cooperation of 16 countries.
The animation shows the forms of government and official languages of the world´s countries.
Mercury is innermost and smallest planet of the Solar System.