Why does ernst mayr's biological species concept not apply to archaea and bacteria?

This is because Bacteria and Archaea don’t reproduce sexually.

Ernst Mayr defined a species as:

"species are groups of interbreeding natural populations that are reproductively isolated from other such groups."

Bacteria reproduce through binary fission, a form of asexual reproduction.

Archaea also reproduce asexually by binary fission, fragmentation, or budding.

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

not sure if this is what you'r looking for eubacteria and archaebacteria