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Earth Science Practice Test Practice Quiz
Test your knowledge of Earth Science Practice Test with 23 practice questions. Get instant feedback and detailed explanations to identify gaps and improve your understanding.
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Approximately what percentage of Earth's surface is covered by water and what is the planet's average ocean depth?
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Correct answer: About 71% and 2.3 miles
Approximately 71% of Earth's surface is covered by water and the average ocean depth is about 2.3 miles (roughly 3.7 km).
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