The erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes
Answer:
air
Explanation: without air you can cant even live
Fungus because it is a living thing in its own right as opposd to a brain cell which is part of an organism.
I think the power plant because the mitochondria makes the atp?
Ysbabahahahbshabsshabansjnsahhsb because moviton
