Why are Earth-based bacteria unable to cause decomposition on Mars?

Answer

They cannot survive the pervasive cold and near-vacuum atmosphere

The Martian environment lacks the necessary moisture and moderate temperatures required for Earth-based bacteria and fungi to survive or multiply.

Why are Earth-based bacteria unable to cause decomposition on Mars?

#Videos

What Happens to Your Body If You Die on Mars? - YouTube

biologyMarsSpacedecompositionbody