The Planet Earth: Continents and Oceans

Important clues to the earth's history can be found by examining its continental and oceanic crust. Do you know the main structural characteristics of each and their differences?

Press the CONTINUE button above to generate true, false or irrelevant statements about the above situation and question. Then choose TRUE, FALSE, or IRRELEVANT by clicking below. Press CONTINUE again to generate the next statement.
TRUE FALSE IRRELEVANT

Additional Help

Click here to see contents of the TRUE list (and additional help).

Click here to see contents of the FALSE list (and additional help).

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