Earth and Environment Atlas

How The Planet Works
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The Rock Record Quiz

Intermediate

Five questions from the depth wave's own research: the Danish pioneer who saw that sediment lies flat, the sailor whose wind scale outlived his navy, and the deep boundary where seismic S-waves stop dead.

Ranked Mode. Timed, and counted toward the leaderboard.

Before You Begin

Selecting Start Quiz below counts as taking this quiz, even if you do not finish it. Once you start, refreshing or going back will show you the same questions again, not new ones.

This will be a ranked, timed attempt. You will have 3 minutes to finish once you start.

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