What two basic approaches listed below would have the greatest impact on lowering atmospheric CO2 levels? Increase the number of trees. Increase the number of gas powered vehicles. Reduce the burning of fossil fuels. Decrease the number of trees. Increase the number of buses that run on propane. Decrease the size of the Amazon river. Increase the size of the polar ice caps. Decrease the amount of sun reaching the earth. Match each stage of the Calvin-Benson Cycle with its corresponding biochemical function. 1. 3-phosphoglycerate is oxidized to form glyceraldehyde-3P at the expense of ATP and NADPH 2. glyceraldehyde-3P is used to generate xylulose-5P using the enzyme ribulose-5P kinase 3. ribulose-1,5-bisphosphate is combined with CO2 to form two moles of 2-phosphoglycolate 4. glyceraldehyde-3P is used to reform ribulose-1,5-bisphosphate using the carbon shuffle Stage 3 Stage 2 5. ribose-5P is combined with O2 to form two moles of 3- phosphoglycerate ribulose-1,5-bisphosphate using the carbon shuffle