Problem: Other churches in the Anglican Communion around the world (e.g., the Episcopal Church in the United States, and the Anglican Church of Canada) still function under their own private systems of canon law.
What do extant churches of the Anglican Communion still operate with?
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Answer: their own private systems of canon law

Problem: The Great Plains is the broad expanse of flat land (a plain), much of it covered in prairie, steppe and grassland, that lies west of the Mississippi River tallgrass prairie states and east of the Rocky Mountains in the United States and Canada. This area covers parts, but not all, of the states of Colorado, Kansas, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, and Wyoming, and the Canadian provinces of Alberta, Manitoba and Saskatchewan. The region is known for supporting extensive cattle ranching and dry farming.
where does the great plains lie?
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Answer: west of the Mississippi River

Problem: The National Archives Building in downtown Washington holds record collections such as all existing federal census records, ships' passenger lists, military unit records from the American Revolution to the PhilippineAmerican War, records of the Confederate government, the Freedmen's Bureau records, and pension and land records.
What proportion of the federal census records in existence does the National Archives Building house?
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Answer:
all