All of them.
The Arctic circle is 66 33′ 39″ north and the Antarctic is the same south of the equator.Every longitude crosses both circles.
The Arctic Circle has one point on it at every possible longitude.Its latitude is roughly 66.5° North.The Arctic Circle is roughly 66.5 degrees North at all longitudes.
No.
NoVladivostok does not lie north of the arctic circle,it really lies off the coast of the Sea of Japan.
lines of longitude
it is a latitude
The Arctic and the Antarctic respectively.
Part of Alaska
Fairbanks, Alasksa
No.
Every meridian of longitude on Earth crosses the Antarctic Circle, the Arctic Circle, and every other parallel of latitude on Earth.
The Arctic Circle is 66.5 degrees north. The Antarctic Circle is 66.5 degrees south.