It would continue moving north forever. (No friction would mean no gravity)
Answer:
When food enters the digestive system through the mouth ... Food is then broken into smaller pieces just by a person chewing. The teeth then cut and also crush the food, While the food is mixed with saliva. The process of this basically helps to makes it soft and a lot more easier for a person to swallow food.
I hope this helps you :)
The eye bends light through the Cornea; which does the majority of the bending of the light, and the Lens, which fine tunes the light.