Request a Copy of your Certificate of Naturalization. The Certificate of United States Naturalization Guide was developed to help naturalized U.S. citizens complete and file their own requests for a copy of their Certificate of Naturalization.
A polar day refers to a day when the sun does not set for 24 hours. This occurs because the top of the earth tilts toward the sun during one half of the year. Areas in the very northern and very southern parts of the globe are the only regions that experience both polar days and polar nights.
The Earth's tilt on its axis with respect to its orbital plane is the cause of the different seasons experienced annually. When the Earth is tilted toward the sun, it causes the summer season in that particular hemisphere. Winter is consequently caused by the Earth titling away from the sun.