What is the total number of reasonable resonance contributors (including the one provided below) that can be drawn for ozone? reasonable resonance contributors will generally not have more than one formal charge per atom and will not violate the "octet" rule for any atom.

a = 1
b = 2
c = 3
d = 4

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.

What does the start look like