Which lists the correct order of the steps? O 4, 2, 1, 3 Sammy is taking notes to study for a test. He wrote out the steps that involve hydrogen during photosynthesis. The steps are shown, but they are not in the correct order. O 4, 1, 3, 2 O 4, 3, 1, 2 1 04. 2. 3. 1 1 - Water is broken down into oxygen and hydrogen. 2- Glucose is broken down to be used by plants. 3 - Hydrogen combines with carbon dioxide to form glucose. 4 - Hydrogen enters the plant as part of water.​