How does Marcel Duchamp defend his urinal in “The Richard Mutt Case?”/What is the point of Tzara’s “Dada Manifesto?”

How does Marcel Duchamp defend his urinal in “The Richard Mutt Case?”/What is the point of Tzara’s “Dada Manifesto?” Order Description Two questions. Each answer for one paragraph. Total is one page. 1.How does Marcel Duchamp defend his urinal in “The Richard Mutt Case?” 2.What is the point of Tzara’s “Dada Manifesto?”