Which statement is true for all equilibrium systems?
a. the mass of the reactants is equal to the mass of the products.
b. the addition of a catalyst changes the equilibrium concentrations.
c. the concentration of the reactants is equal to the concentration of the products.
d. heating the system always favors the exothermic reaction.
e. the rate of the forward reaction is equal to the rate of the reverse reaction.

E. the rate of the forward reaction is equal to the rate of the reverse reaction

The process in the picture is photosynthesis. The plant is taking CO2 and H2O and using light to form glucose which would be the sugars and creating a byproduct of oxygen that is being released into the atmosphere. How you know this is photosynthesis? A big hing clearly is the plant and how it’s taking H2O and CO2 and making glucose so it isn’t cellular respiration (if you don’t know what that is don’t worry, if you are learning about this you are bound to come across that later) and it’s releasing oxygen into the atmosphere and light has a function in this process according to the image. This should be enough evidence. Hope I helped!!!