Comedy is the genre of literature that has a vibrant or happy ending. In other words, the plot of comedy literature moves from rigid or sad beginnings to freedom or a happy ending.
On the other hand, tragedy is the genre of literature that has a sorrowful or depressing ending. In other words, the plot of tragedy literature moves from freedom or happy beginnings to rigid or sad ending.
Air is a homogeneous mixture. Heterogeneous mixture means that the components are not evenly distributed, just like a mixture of sand and water where we can identify the individual components visually.