Hi Mr. Wood, this is Angela from 1st period at Talbert Middle School. Here are the answers I got for the quiz:
1) I think that the graph shows between 386 and 388 CO2 concentration.
2) I also think that the graph show it is 2:56 a.m. on it.
3) The CO2 amount would probably decrease because it is later in the morning or afternoon.
See you soon!
Angela from 1st period