Why do the two circles of latitude never touch?

It means they are meeting at the North Pole. the North Pole & South Pole are the only places where lines of longitude meet and the distance is 0 miles.

1. b vitamins2. vitamin k3. vitamin d4. examples are walnuts, seeds, tofu5.  total fat, saturated fat, trans fat, cholesterol, sodium, total carbohydrate, dietary fiber, sugars, protein, vitamin a, vitamin c, calcium, and iron.6. 11257. they have to contain reliable information8. less than 10%  9. i didnt read the course so im not surehope that : p