You set up eddy flux towers above tropical dry forest in Costa Rica and measure carbon flow in the atmosphere for one day and one night in the dry...

You set up eddy flux towers above tropical dry forest in Costa Rica and measure carbon flow in the atmosphere for one day and one night in the dry season. During the day, the forest absorbs 30 grams of carbon per square meter. The following night, it releases 80 grams of carbon per square meter. You know that each gram of carbon contains 39 kilojoules (Kj) of metabolizable energy, but you round this value to 40 to make this question easier and calculator-free. What do you estimate gross primary production of the forest in the dry season to be, in terms of kilojoules (kJ) per m2 per day? Do you expect net primary production to be higher or lower? Why?