Problem: Geologically, West Antarctica closely resembles the Andes mountain range of South America. The Antarctic Peninsula was formed by uplift and metamorphism of sea bed sediments during the late Paleozoic and the early Mesozoic eras. This sediment uplift was accompanied by igneous intrusions and volcanism. The most common rocks in West Antarctica are andesite and rhyolite volcanics formed during the Jurassic period. There is also evidence of volcanic activity, even after the ice sheet had formed, in Marie Byrd Land and Alexander Island. The only anomalous area of West Antarctica is the Ellsworth Mountains region, where the stratigraphy is more similar to East Antarctica.
What type of geologic activity occurred even after the formation of the ice sheets?
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Answer: volcanic


Problem: The Water, Sanitation and Hygiene (WSH) program of the Gates Foundation was launched in mid-2005 as a "Learning Initiative," and became a full-fledged program under the Global Development Division in early 2010. The Foundation has since 2005 undertaken a wide range of efforts in the WASH sector involving research, experimentation, reflection, advocacy, and field implementation. In 2009, the Foundation decided to refocus its WASH effort mainly on sustainable sanitation services for the poor, using non-piped sanitation services (i.e. without the use of sewers), and less on water supply. This was because the sanitation sector was generally receiving less attention from other donors and from governments, and because the Foundation believed it had the potential to make a real difference through strategic investments.
What efforts have the WSH taken 
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Answer: since 2005 undertaken a wide range of efforts in the WASH sector involving research, experimentation, reflection, advocacy, and field implementation


Problem: Prior to the one-drop rule, different states had different laws regarding color. More importantly, social acceptance often played a bigger role in how a person was perceived and how identity was construed than any law. In frontier areas, there were fewer questions about origins. The community looked at how people performed, whether they served in the militia and voted, which were the responsibilities and signs of free citizens. When questions about racial identity arose because of inheritance issues, for instance, litigation outcomes often were based on how people were accepted by neighbors.
In what areas were there the most questions about origins?
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Answer:
unanswerable