Question

Researchers studying microbial activity at another active oil-spill site found decreasing levels of methane over the course of several months, but no changes in oxygen saturation in any of their repeated samples. How should they interpret these results

Answer 1

Answer:

Methanotrophs.

Explanation:

Methanotrophs are those microbes (bacteria) which feeds on methane or used methane as energy source for their survival. These type of microbes survive by using single carbon compound as a source of energy. So we can say that due to the presence of Methanotrophs, the level of methane decreases while there is no change occurs in oxygen saturation level.