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The atmosphere surrounds us everywhere on this planet. We take its presence so much for granted...
An earthquake is one of the most devastating natural phenomena.
The diameter of our galaxy is about 100,000 light years; it contains more than 100...
This animation demonstrates different types of soil.
A glacier is a large body of ice in constant, slow motion down a hillside.
Still waters take various forms on the planet. Let’s take a look at how we can group them.
Tsunami waves are very high waves of immense destructive power.
Stratovolcanoes consist of layers of volcanic ash, debris and lava.