article_snippet.sent: The various continents, sitting atop huge plates akin to jigsaw puzzle pieces sliding over Earth's mantle, have slowly moved around the globe during the planet's history.
article_snippet.sent: The various continents, sitting atop huge plates akin to jigsaw puzzle pieces sliding over Earth's mantle have separated, drifted and joined numerous times in a process called plate tectonics.
article_snippet.sent: The various continents, sitting atop huge plates akin to jigsaw puzzle pieces sliding over Earth's mantle base
article_snippet.sent: The various continents, sitting atop huge plates akin to jigsaw puzzle pieces sliding over Earth's mantle, have slowly moved around the globe during the planet's history.
article_snippet.sent: The various continents, sitting atop huge plates akin to jigsaw puzzle pieces sliding over Earth's mantle have separated, drifted and joined numerous times in a process called plate tectonics.