I'm confused about the difference between carbon and charcoal filters. Ultimately, charcoal contains carbon but I have come across an exam question that asks for their individual roles in a water filter.
I have done some research and found this page that states that 'activated carbon' and 'activated charcoal' can be used interchangeably.
Would any of you be so kind as to help me decipher the individual role of carbon filter and a charcoal filter in an ideal water filter?