Answer:
photolithotrophs
Explanation:
Photolithotrophs are microorganisms that obtain energy from sunlight and use the atmosphere as carbon source (carbon dioxide present in it). This group includes algae and cyanobacteria.
In this context, the prefix "PHOTO" indicates light and "AUTOtrophic" means that the microorganism obtains carbon without the need for organic sources such as dead organic matter (vegetable and plant remains). Thus, photosynthetic microorganisms are also called photoautotrophic microorganisms.