Cotton Gin was created to process cotton
In the picture to the right iron filings have been sprinkled around a bar magnet. The iron filings outline the magnetic field lines, making it visible. Magnetic fields all have a pair of "poles", from which "lines of force" or magnetic field lines appear to originate.
Answer:
C. Labor
Explanation:
Labor means to work so if you are performing a job and/or task you would be working.