Science 路 馃嚭馃嚫 US
How old are geometric earthwork structures, as of August 2026?
Answer options
- A.3,000 years
- B.1,000 years
- C.2,000 years
- D.2,500 years
More Science 路 馃嚭馃嚫 US questions
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- Which US state is a major importer of fracking wastewater as of August 2026?
- As of August 2026, which U.S. river basin faces steep water cuts due to drought?
- As of August 2026, where is fracking wastewater often pumped underground?
- Where did a humpback whale give birth in July 2026?
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