It really depends on the individual. I would say not to look at which is the hardest but think of which ones you find most interesting. I found biology and chemistry easier to understand than physics, but when it came to calculations in physics, I applied my love for maths. Then when it came to choosing which to focus on later in life, I focused on my strengths which mainly were in biology
Depends on who you ask. I always enjoyed chemistry but seemed to be better at biology, and I enjoyed maths but wasn’t that strong in physics at school. I focus now on biochemistry, so applying chemistry knowledge to biological systems.
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