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Strait of Gibraltar

This space shuttle view of the Atlantic Ocean and Mediterranean Sea illustrates an important feature of Earth-a seacoast. Earth is the only planet with borders of land adjacent to bodies of water because it is the only planet where liquid water is stable at the surface. Seas are important because water has been the catalyst for the development of life on our planet. The Strait of Gibraltar is the border between Africa and Europe. In Spain, to the left, the small spike of land is the Rock of Gibraltar; Africa is on the right side of the image.

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