Complex sentence. It has a subordinate clause
Answer:
Yes.
Explanation:
I am not a tree hugger, but it will pay off to reduce your carbon foot print and to be aware. Although global warming is really part of nature, like what happens with ice ages, it still pays to keep track and reduce your carbon foot print. Finally, it can be easy, turn lights off, recycle, and do not waste water!
Percy says if he whens he gets the bolt and the helm.
Water!
Photosynthesis produces sugar and oxygen, and doesn't require or produce carbon, thus it must be water.