AP envi science or AP econs over the summer ?

<p>So currently these are the 2 APs classes that I am interest in. Which one would be easier for me to study over the summer ? I like econs a lot and people say it's easy but the reason I am still linger between sophmore of summer time is because I want to form an econ team to compete in the National Economics Challenge and it would be easier to get the econ teacher involve if I have class with him. On the other hand, I am not extremely bright with science courses(hence AP envi and not AP bio) so I want to get more study time and more assistance.</p>