<p>Hi. I'm planning to self study AP Biology, AP chemistry and AP Env Science for this year's exams.
Are 3 months enough for this provided that I've already studied Biology and Chemistry at this level in my curriculum?
I did have a look at the PR books for AP biology and I've already studied most of this material before. I just need to use the PR books for AP Bio and AP Env. I haven't even looked at what AP Chem is like yet but I'll see.</p>