In which type of environment are most archaea found?

Archaea are a diverse group of microorganisms that are mostly found in extreme environments.

Archaea are a group of microorganisms that have a wide range of habitats, but they are predominantly found in extreme environments such as hot springs, geysers, hydrothermal vents, salt lakes, and acidic environments. Some archaea are also found in the human gut, freshwater, and soil, but their abundance is much lower compared to extreme environments.