Q. What is the common name for cyanobacteria?
Answer: Blue-green algae
Notes: Cyanobacteria, often referred to as blue-green algae, are photosynthetic microorganisms that produce oxygen, significantly impacting Earth's atmosphere during the Great Oxygenation Event. This event marked a pivotal moment in Earth's history, leading to the formation of the ozone layer and enabling aerobic life to thrive. Additionally, researchers are exploring the use of cyanobacteria in sustainable building materials for future space missions.