Choosing As

[Masha karroum]

Can some on e tell me difficulty levels of the following As math chemistry physics biology

 

[omaaaar]

Can some on e tell me difficulty levels of the following As math chemistry physics biology

If you have done gce o levels and then you come into As you won't find it that hard that's what I have heard
I did igcse and then came into As I found it pretty difficult at the start but by now I feel that they are not that difficult
I have taken maths, chemistry and physics and I feel that maths is the hardest of all of them don't know about bio