Not done science during high school!

<p>Hello!
I'm an international student and have completed IGCSEs and A-levels. However, I didn't take any science subject (physics,chem,bio) during high school (grade 9-12).
I've done 4 years of history, math etc and seem to have fulfilled all requirements other than this! :/
How much of a disadvantage would I be at considering I intend to major in economics?
Thanks!</p>