Which word means "an expression consisting of only one term"?

Which tone best fits a business letter

Constructing an argument: in modern american society, the legalization of marijuana continues to be controversial and hotly debated. some people find it contradictory that certain "drugs"—such as tobacco and alcohol—are legalized even though they pose proven health risks, while marijuana, which has many medicinal applications, continues to be illegal by the federal government. what reasons do you think the federal government gives for outlawing marijuana, and do the reasons support the conclusion?

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.