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A glacier is a large body of ice in constant, slow motion down a hillside.
Tectonic plates can move in relation to each other.
The diameter of our galaxy is about 100,000 light years; it contains more than 100...
A periodic climate pattern that occurs across the tropical Pacific Ocean every five years.
It is a sedimentary rock with high calcium carbonate content.
The area surrounding an inactive or extinct volcano is not necessarily calm. Let’s see the...
Waterfalls form where the river flows over a steep precipice in its course.
Physical properties, as well as the flora and fauna of the ocean change with depth.