I think it should be: The bacteria&#x27;s ability to oxidise stuff into methane and carbon dioxide is of particular interest. (From <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Movile_Cave" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Movile_Cave</a> the cave is full of co2 and methane).