How much garbage on a cruise ship?

What age do you have to be to drive a jet ski in Georgia? How do you barrel roll a jet ski? Who invented the first steamboat engine and in what year? Where is the headquarters for Hornblower cruises located? Distance undersea that a submarine can travel today? Name for three hulled boat? What is the oil to gas ratio for a mercury 20hp outboard motor? What is the meaning of submarine areas? Why might a submarine be crushed if it sinks too low in the ocean? What is a type of boat for one sculler and two oarsmen? What is the best way to avoid being run over by your own PWC or moterboat? How much do yachts go for? Why do guys always call their cars and boats and stuff 'she'? What does it mean for a sailboat to be in irons? In Georgia the law says you may not operate a boat or PWC at greater than idle speed within what distance from an anchored boat a dock a person in the water or a residential shoreline? What do the short blasts of a horn indicate? How many miles of the southwest coast of America is Hawaii? When taking weekend camping supplies on boards small boat how should the supplies be stored on for the trip? How did the steam boat change over time? Why does a leaking boat sink?