In which country do u call a bus a guagua argentina spain cuba colombia

This is a picture i'm drawing for my art class! i need to know if it good (first of all) and that it represents dia de los muertos (

Suppose that you are in a room with 3 doors and a crack in the ceiling for light. that is all. the doors each have a sign on them that says what there is behind them. door #1. a pool of corrosive acid. door #2. a crocodile that hasn't eaten in 8 months. door #3. a solar "oven". a giant lens that focuses all the sunlight at the entrance of the door. you must choose a door, which door do you choose?

Which sout american country has the highest population density