D) Methanogen is the awnser
Another thing would be coal. Corresponding with C. We do not have a limited supply of air, although it will get worse and quality, and the same goes with our soil.
Answer:
Taxonomy. Quick google search. :)
Explanation:
Photosynthesis is the process by which organisms that contain the pigment chlorophyll convert light energy into chemical energy which can be stored in the molecular bonds of organic molecules like surgars
