CCP exam prep — how deep does the physical science section actually go?

I'm three months out from sitting for the CCP Certified Climate Change Professional exam and trying to figure out how technical the physical science portion gets. My background is in environmental policy, not atmospheric science, and I'm getting nervous reading the competency framework — it references radiative forcing, carbon feedback loops, and ocean acidification chemistry at a level that feels way beyond what I work with day-to-day.

I've been studying for about five weeks, two hours a day on weekends and one hour on weekdays. My practice scores are around 70% and the passing threshold I've heard is 75%, so I'm not there yet. The policy and mitigation sections feel natural to me, but the science foundations drag my score down significantly.

What I can't figure out is whether the exam actually asks you to do calculations — like actual radiative forcing math — or whether it's conceptual understanding only. That changes how I'd approach the next ten weeks of prep significantly. Anyone with a policy background who's passed this, I'd love to know how you handled the science gap.