What did upton sinclair exposed in his book entitled the jungle?

What is the difference between a supreme court opinion and a supreme court dissent? guys answer asap

He leaned his head against the wall; his eyes were shut, his hands clasped in each other, and his body seemed to be sustained in an upright position merely by the cellar-door against which he rested his left shoulder. the lethargy into which he was sunk seemed scarcely interrupted by my feeling his hand and his forehead. his throbbing temples and burning skin indicated a fever . . there was only one circumstance that hindered me from forming an immediate determination in what manner this person should be treated. my family consisted of my wife and a young child. our servant-maid had been seized, three days before, by the reigning malady, and, at her own request, had been conveyed to the hospital. we ourselves enjoyed good health, and were hopeful of escaping with our lives. our measures for this end had been cautiously taken and carefully adhered to. they did not consist in avoiding the receptacles of infection, for my office required me to go daily into the midst of them; nor in filling the house with the exhalations of gunpowder, vinegar, or tar. they consisted in cleanliness, reasonable exercise, and wholesome diet. who is the story’s first-person narrator

Plss me i need hrelp i will give you 12 pionts. a student is writing a blog claiming that school uniforms are a good idea. which sentence provides evidence to support this claim? a: many students are against wearing school uniforms because they think they will look silly. b: a recent study found that students who wear uniforms are more focused during class. c: a recent poll found that only ten percent of teachers are in favor of school uniforms. d: many parents worry that school uniforms will be more expensive than regular clothing.