The Tropic of Cancer is to the Tropic of Capricorn as The Arctic Circle is to the __________ __________.

Antarctic

Antarctic Circle

The Arctic Circle is to the Antarctic Circle.

To determine the answer to this question, we need to understand the relationship between the Tropic of Cancer and the Tropic of Capricorn. The Tropic of Cancer is an imaginary circle of latitude located at approximately 23.5 degrees north of the equator, while the Tropic of Capricorn is an imaginary circle of latitude located at approximately 23.5 degrees south of the equator. These two circles mark the boundaries of the areas on Earth where the sun appears directly overhead at least once a year.

Now, let's apply the same concept of latitude circles to find the answer to your question. The Arctic Circle is another imaginary circle of latitude located at approximately 66.5 degrees north of the equator. It marks the boundary of the area within the Arctic region where, at least once a year, the sun remains visible for 24 hours during the summer solstice and doesn't rise above the horizon during the winter solstice.

Therefore, the equivalent counterpart to the Arctic Circle in the southern hemisphere is the Antarctic Circle. The Antarctic Circle is an imaginary circle of latitude located at approximately 66.5 degrees south of the equator. It marks the boundary of the area within the Antarctic region where, at least once a year, the sun remains below the horizon for 24 hours during the winter solstice and doesn't set during the summer solstice.

Hence, the answer to your question is the "Antarctic Circle."