Answer:
The Arctic Circle is an imaginary line. It marks the northernmost latitude at which the sun does not rise at least one day a year, and does not set at least one day a year. This makes for long days in summer and long nights during winter.
Step-by-step explanation:
An Arctic Circle can be defined as an imaginary line of latitude that is drawn parallel to the equator around the Earth, at approximately 66°30′ North.
Basically, the Arctic Circle is described by scientists as the most northerly of the five major circles of latitude and one of the two (2) polar circle of the Earth.
The zone (region) to the South of the Arctic Circle is generally referred to as the Northern Temperate Zone while the zone (region) to the North of the Arctic Circle is called the Arctic.
Furthermore, the Arctic Circle represents or depicts the northernmost latitude at which the centre of the noon is only visible in the winter solstice in December i.e the sun does not rise at least one day a year, and does not set at least one day a year. The above describes the polar night (24 hour sunless night) of the December winter solstice.
In conclusion, the Arctic Circle causes long days in summer and long nights during winter.