Chemistry Depth Study! (1 Viewer)

[bestcomeback]

Hello! im struggling to find an idea for a depth study in chemistry. its on advertising! I really need to absolutely smash this depth study for a good rank because i slighty messed up task 1. Any suggents would be SO much appriciated, thank you!!!!

Also any tips for a depth study? like little make sure to dos, and do nots and whatnot? thank you!!