At an elizabethan playhouse, who were the groundlings?

The excerpt above is from page 21 of harry potter and the sorcerers stone by j. k rowling. which passage represents a

How might a reader find tables, charts, and graphs useful

Which persuasive technique is used in the passage below? after seeing ads for greasy french fries, sugary soft drinks, and salty chips, you head to the kitchen to fix yourself an enormous (and unhealthy) snack. with the tv blaring in the background, you then waste hours on the web.