Parallels or circles of latitude are imaginary circles perpendicular to the axis of the earth. Main parallels: The Equator divides the earth into two hemispheres: North and South.
- Tropics: The tropics is a region of the Earth surrounding the Equator. This region is limited by:
-The Tropic of Cancer: 23° 27' N -The Tropic of Capricorn: 23° 27' S
- Polar regions : Earth's polar regions are the areas of the globe surrounding the poles also known as frigid zones. These regions are limited by -Arctic Circle: 66 ° 33 'N -Antarctic Circle: 66 ° 33 'S