Answer:
georg steinhauser is a austran chemist he spent 3 years reasearching the bellybutton to see what lent contains as he suspected most of the lent had cotton from clothing but he also found that it had dead skin,sweat,dust and fat. the stomach hairs act iike small hooks it protects your bellybotton from germs and unwanted objects.
Explanation:
The mutual reward theory states D
