<p>indecisive, have you looked into the Biological Systems Engineering major in the College of Agriculture and Life Sciences? Sounds like something you might be interested in. </p>
<p>[Biological</a> Systems Engineering - College of Agriculture and Life Sciences, Virginia Tech](<a href=“http://www.cals.vt.edu/departments/bse.html]Biological”>http://www.cals.vt.edu/departments/bse.html)</p>
<p>Good luck to you. I must add I am very impressed with your strong desire to use what you learn to help those less fortunate and engage in service work abroad. I hope you enjoy your journey and do great things!</p>