Hi Mr. Wood! This is Sean from your 3rd period class! I have the answers to the questions on the quiz. For #1, The answer is that there are about 387 pm of carbon there. For #2, the answer is that the data was collected around 2:00 pm in the afternoon. Finally for #3, the answer is that the CO2 will be lower because the plants have sucked up much of it since they started from when the sun rose up for to make their food. Have a great time in Alaska!