Submitted by Anonymous on Thu, 05/19/2011 - 15:50
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Carbon Balance in Warming and Drying Tundra

Hi Mr. Wood. How have you been. Sorry didn't do this till the last day, but it is done now. Here are my answers......

  1. The CO2 in the graph is between 386-388 parts per million

  2. The data was collected in the late afternoon or evening.

  3. In 2 or more hours, there would be less carbon dioxide at night because the plants are not using the carbon dioxide for photosynthesis. There also isn't any sunlight yet.

-THANK YOU SO MUCH!! Rebecca Hogan

Thu, 05/19/2011 - 18:28

John Wood

Thanks for the answers. Good thinking, but remember that during photosynthesis the plants are using more CO2 and giving off oxygen. So at night we would measure more CO2 in the air.Mr. Wood