What happens to methane in the atmosphere, and how is it transformed into carbon dioxide and water?
What happens to methane in the atmosphere, and how is it transformed into carbon dioxide and water?

What happens to methane in the atmosphere, and how is it transformed into carbon dioxide and water?
How and where is methane produced from organic matter, and what role do methanogenic archaeans play in this process?
How is carbon dioxide produced by respiration, and what happens to it after it is released by organisms?
How does carbon dioxide enter autotrophs from the atmosphere or water?
In what forms is carbon present in aquatic ecosystems, and how does it differ from atmospheric carbon?
How do autotrophs convert carbon dioxide into carbohydrates and other carbon compounds?
Use theories to explain natural phenomena- the concepts of energy flow explains the limited length of food chains.
How does the concept of energy flow explain the limited length of food chains?
How can pyramids of energy be used to quantitatively represent energy flow in an ecosystem?
How and why is heat lost from ecosystems?
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