Question
SLPaper 1A
The apparatus shown was used to investigate the effect of varying carbon dioxide concentration on the rate of photosynthesis. Carbon dioxide concentrations were varied by adding different amounts of sodium hydrogen carbonate (NaHCO₃) to water.
What is the dependent variable in this investigation?
A
Temperature
B
Light intensity
C
Amount of NaHCO₃ added
D
Volume of oxygen produced