List two important events that led to the development of the plot in Chapter 2.

While at the zoo, Harry looks at a large boa constrictor encased in glass and feels sympathetic that the snake must suffer through annoying visits from people like Dudley and Piers. The snake winks at Harry, and the two begin a sort of mimed conversation about the snake’s breeding and background: the snake is from Brazil, but it has been bred in captivity. Noticing the snake’s bizarre behavior, Dudley runs over to the glass case, pushing Harry hard to floor in the process. Suddenly, the glass in front of the snake’s cage vanishes and the snake slithers out of the reptile house, playfully nipping at Dudley and Piers as it passes.

Uncle Vernon confines Harry to his cupboard for an indefinite amount of time.