What are three type of archaea?

Answer 1

Thermoacidophiles, Halophiles and Methanogens.

Additional Note: Themoacidophiles are found in hot springs, Halophiles are found in extremely salty regions and Methanogens are found in the gut of ruminant animals like Cows which are also responsible for the production of methane in the dung of these animals (Biogas).

Answer 2

There are three types of Archaea. They are

• The Crenarchaeota
• The Euryarheota
• The Korarchaeota

The first one specialises in tolerating extreme temperatures and acidity. The second one are Methane producers. A catch-all for Archea for which very little is known.