I need help with Q7 in regards to the lab "reduction of ethyl vanillin" w/ sodium borohydride as the reducing agent.

7. Discuss the Green Chemistry Principles 3 and 5 as they pertain to just the reaction (not the overall procedure). 12 Principles of Green Chemistry 1. Prevention It is better to prevent waste than to treat or clean up waste after it is formed. 2. Atom Economy - Synthetic methods should be designed to maximise the incorporation of all materials used in the process into the final product. 3. Less Hazardous Chemical Syntheses - Wherever practicable, synthetic methodologies should be designed to use and generate substances that possess little or no toxicity to human health and the environment. 4. Designing Safer Chemicals - Chemical products should be designed to preserve efficacy of function while reducing toxicity. 5. Safer Solvents and Auxiliaries - The use of auxiliary substances, e.g. solvents, separation agents, should be made unnecessary wherever possible and innocuous when used