<p>I'm buying an SAT 2 book tomorrow for either biology or physics. Which would be easier to score a 750+ on after studying for a month? I took biology in 9th grade and physics in 10th, and I haven't had a course in neither since, so my knowledge of both subjects is quite limited!</p>
<p>What grade are you in right now? That might help a few people answer your question more clearly.</p>