yes --we still here aren't we?
The Arctic Circle is a parallel of constant latitude. As of 2012, it is approximately 66.5622° north latitude. Surely that's close enough for your requirement.
Yes, absolutely. At the Arctic Circle in December, it barely gets LIGHT enough to be astronomical twilight. Then it gets dark again.
Alberta is not far enough north to have a day with 24 hours of sunlight -- that only occurs north of the Arctic Circle, in the three northern territories of Canada.
Not enough information. Distance from where to the circle?
no,not all countries have enough food to produce
The human population of the entire Arctic Circle currently stands at about 2 million people (contrast that with zero in the Antarctic).These are indigenous people, many of them Inuit. Many of them are in Russia, Finland and and Norway. The Arctic Circle of North America is made up of about 3% of all the population in the Arctic Circle.The most reliable figures I can find for the Arctic Circle, puts the population at around 607,252 people.
not enough viewers
It is not. Japan is "the Land of the Rising Sun" and Norway is "the Land of the Midnight Sun." Areas in Norway are far enough north that, during the summer, the Sun is still in the sky late into the night. Places north of the Arctic Circle can have one or more days with no night at all (24 hours of daylight).
No, it is much too cold and there is not enough to eat.
The Roman Empire was able to produce enough food.
Wild dogs, arctic foxes, jackals and bobcats are all predator to the Arctic hare. ( Possibly wolves to if they are hungry enough ! But they usually look for bigger prey ).
Coal forms from peat, and peat forms in bogs. There is not enough organic material in the arctic to form coal.