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sea level

(Encyclopedia) sea level, the level of the sea, which serves as the datum used for measurement of land elevations and ocean depths. Theoretically, one would expect sea level to be a fixed and…

Ordovician period

(Encyclopedia) Ordovician periodOrdovician periodôrdəvĭshˈən [key] [from the Ordovices, ancient tribe of N Wales], second period of the Paleozoic era of geologic time (see Geologic Timescale,…

ozone layer

(Encyclopedia) ozone layer or ozonosphere, region of the stratosphere containing relatively high concentrations of ozone, located at altitudes of 12–30 mi (19–48 km) above the earth's surface. Ozone…

Italy Map: Regions, Geography, Facts & Figures

Welcome to Italy, a country of great historical significance, vibrant culture, and stunning landscapes. Located in southern Europe, Italy is a boot-shaped peninsula extending into the Mediterranean…

Our Top 5 Stories for the Week of October 11, 2021

It’s been a busy week, from low voter turnout in Iraq to absolute violence across the globe. Who has time to keep track of it all? That’s why we’ve boiled it all down to our top five stories of the…

The Real World Destinations of Greek Mythology

The Real World Destinations of Greek Mythology The question "Is Mount Olympus Real" gets asked more often than you might think on the Internet. The root of this question is that, clearly, Mount…

Tallest Mountains in the U.S. (14,000 Feet+)

Top of Page Source: Getty ImagesMountaineering is much more than scaling the highest peak and dreaming of the next trek you’re going to take. For many, it’s a lifelong dream to climb the highest…

Japan Department of State Background

U.S. Department of State Background Note Japan Index: Geography People Government and Political Conditions Economy Foreign Relations U.S.-Japan Relations GEOGRAPHYJapan, a country of islands,…