Which of the following sets of inputs and outputs can be used to describe photosynthesis?

a. inputs: carbon dioxide, oxygen, chemical energy; outputs: glucose

b. inputs: chemical energy; outputs: water, glucose, light energy

c. inputs: water, carbon dioxide, light energy; outputs: oxygen, glucose, chemical energy

d. inputs: carbon dioxide, glucose, chemical energy; outputs: water, oxygen, light energy

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.