The extremely ________ is called frigid zone.

The places situated in the frigid zone receive ________ rays of the sun.

In the frigid zone, winter lasts for about ________ months in a year.

In the northern hemisphere, the frigid zone lies between the Arctic Circle and the ________ . (/)

Large parts of Canada, Alaska, Greenland, and Iceland lie in the frigid zone.

In the polar regions, during summer the sun shines in the sky even at night.