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Deserts cover nearly one-seventh of the Earth's land surface.
A geyser is a spring characterized by intermittent discharge of water and steam.
You can become meteorologists through fun group tasks.
The flora and fauna of the savannahs adapt to the climate.
It is a sedimentary rock with high calcium carbonate content.
Mercury, Venus, Earth and Mars may have they formed in much the same way, but only the Earth is...
Sea and land breeze form because of the differing warming of land and sea.
In this lesson you will learn more about minerals and rocks.