studying for Envirothon

<p>This year my school will compete in Envirothon for the first time, and our coach chose me to be captain. Can some of you veterans fill me in on how to study/how your team is organized?<br>
I was thinking on having everyone study two of the 5 subjects, so then the workload isn't too much, and we would basically have two guys taking each test. Will this work/ is there enough time to do so?<br>
Also, what would be a environmental science textbook to read?</p>