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Troughs of the Coastal Margin
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Queen Elizabeth II addresses at opening of Parliament. (Date unknown on photo, but may be 1958, the first time the opening of Parliament was filmed.)
All 119 References in “We Didn’t Start the Fire,” Explained
Marriage. A couple getting married during a church wedding ceremony. (religion, ceremony, bride, groom)
The Seven Sacraments of the Roman Catholic church
Flags of the countries of the world (flagpoles).
How Many Countries Are There in the World?
July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.
Will Light-Speed Space Travel Ever Be Possible?
African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.
Timeline of the American Civil Rights Movement
The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)
New Seven Wonders of the World
Artist interpretation of a Space meteoroid impact. Meteor impact. Asteroid, End of the world, danger, destruction, dinosaur extinct, Judgement Day, Planet Earth, Doomsday Predictions, comet
10 Failed Doomsday Predictions

Troughs of the Coastal Margin

region, United States

Learn about this topic in these articles:

significance

  • A map of the states, boundaries, and capital cities of the United States, along with the bodies of water and other counties surrounding the U.S.
    In United States: The Western Cordillera

    …these Pacific Coast Ranges the Troughs of the Coastal Margin contain the only extensive lowland plains of the Pacific margin—California’s Central Valley, Oregon’s Willamette River valley, and the half-drowned basin of Puget Sound in Washington. Parts of an inland trench that extends for great distances along the east coast of…

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