During the early earth, when photosynthesis has not yet evolved, there were only negligible amounts of free oxygen in the atmosphere. It was said that the Earth's atmosphere had no free oxygen then. This is about 3.5 billion years ago.
The maps outlining borders and capitals is a political map. These maps are really useful in geopolitics.
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Hi there!
Fort Sumter is located in the harbor of c. Charleston, South Carolina.
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Hey,
The Chao Phraya River is considered an artery because it is used to transport people and goods.
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There would be 3 different types of materials that may be prone to liquefaction, which are; Sandy, Silty, and Gravelly Soils. Hope this helped! :}
