Is this sentence correct or do i need to add a coma before ‘and.’ at the mint, tony watched the complicated, intricate processes of taking bills off the assembly line and packing the money.

Should composting be required in school cafeterias? some people believe that uneaten food from school cafeterias should be composted to reduce the amount of trash in landfills. others argue that composting is time-consuming and difficult for schools to manage.