Which of the Following Does Not Indicate Microbe Involvement in Energy

Question

Which of the following does not indicate microbe involvement in energy and nutrient ﬂow?
A) Thermal hot springs warmed by heat from earth's interior
B) Decomposition of dead matter and wastes
C) Digestion of complex carbohydrates in animal diets
D) Formation of greenhouse gases, CO₂ and methane

Accepted Answer

Thermal hot springs are primarily warmed by geothermal energy from the Earth's interior, not by microbial activity. The other options directly involve microbes in the processes of decomposition, digestion, and greenhouse gas formation.