Hi Mr. Wood this is Jenny from Per. 3
1.The graph is showing about 387 Co2 in parts per million. I thought this because it was around in the middle of 388 and 386 parts per million. 2.I think the data was collected around 12:00 because from the May 12th journal the amount of Co2 was the same, but not exactly the same so I said 12:00. 3.In two more hours I think the Co2 will decrease because there is more photosynthesis in the afternoon than in the morning and all, so it means more Co2 is being taken in by the plants.
-Jenny