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The shape of S. America & Africa appear as though they could roughly fit together like jigsaw pieces. There are also other land areas which have similar characteristics. People have therefore concluded (probably correctly) that the surface of the Earth was once one large contiguous area.

Another interesting idea to consider is that some people claim all of the land area of the Earth is actually an island which floats on a molten layer below the surface of the Earth.

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12y ago

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