Need help asap

I know this isnt chemistry but i couldnt find a science category

Two students were doing an investigation in which they studied the effect of light intensity on the rate of photosynthesis of Elodia, and aquatic plant. To determine the rate of photosynthesis they counted the number of bubbles of oxegyn (O 2)
Produced in the water the results of the experiment are shown in the data table

What is the independent variable? why?

What is the dependent variable? Why?

What title would you give the graph?

What are the three Constants in the experiment?

Write a qualitative observation from the graph

IV: light intensity because it is the things that’s being changed

DV: rate of photosynthesis in Elodia bc it depends on the IV

TITLE: To study the effect of light intensity on the rate of photosynthesis of Elodia

CONSTANTS: water, temperature, type of plant

QUALITATIVE OBSERVATION: light intensity increased/decreased the rate of photosynthesis

the last one is based on ur graph^^

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