Math, FM and...? lead to which types of jobs later

[lljkk]

yr11 DS pondering which 3rd A-level to do from below list. Minded to do a math degree at Uni. Thinks he wants to do some kind of applied problem solving/modelling for future job. I was thinking the A-levels could facilitate future work in ...

Biology : population health models, genomics, epidemiology, health economics... more?

Physics : Physics, astronomy, geophysics, climatology, anything Bayesian... more?

Chemistry ... er, do math & chemistry go together? how?

Have you Any more ideas how math goes with the above subjects? Thanks for any insights.

So, if he loves biology, why not biology, math, and one other...?

But which other, how does he choose...

Apologies, I think I shouldn't start threads. I seem to be truly crap at it.
DS is trying to choose A-levels & he can't figure out how to choose which ones.

Physics A level has a very high overlap with Maths and Further Maths
Physics degrees even more so.

Biology has a lower overlap with maths
Biology degrees vary massively - some are maths heavy, some not

Chemistry is in between the two.

Pure maths degrees leave doors open.
Many unis allow students to switch courses or do combined subject courses

Which subject does he get geeky about if documentaries come on the telly?

What does his school say?
What are the 6th form teachers like as he'll be spending a lot of time with them?