<span>3) Oceans
The oceans are a massive carbon sink, and part of the positive reinforcement of the greenhouse gas cycle is that, as the oceans become warmer, then tend to release more carbon dioxide dissolved in the water which in turn drives temperatures warmer.</span>
Your answer should be options 4, 5, & 6.. correct me if I’m wrong !
Answer:
D
Explanation:
There are many food chains within a food web, so D seems like the best possible answer :)