Here is a question about this article: Several governments maintain permanent manned research stations on the continent. The number of people conducting and supporting scientific research and other work on the continent and its nearby islands varies from about 1,000 in winter to about 5,000 in the summer, giving it a population density between 70 and 350 inhabitants per million square kilometres (180 and 900 per million square miles) at these times. Many of the stations are staffed year-round, the winter-over personnel typically arriving from their home countries for a one-year assignment. An Orthodox churchTrinity Church, opened in 2004 at the Russian Bellingshausen Stationis manned year-round by one or two priests, who are similarly rotated every year.
What is the answer to this question: What is the span of population density per million square kilometers of researchers in Antarctica?
between 70 and 350