Choose the answer that describes biological weathering. A: lichen growing on rocks

B: salt crystallization forming tafoni

C: stone and boulders moved by water

D: acid in water acting on limestone

A.  lichen growing on rocks

Explanation:

Lichen growing on rocks and types of bacteria produce chemicals that weather minerals 3 to 4 times faster than normal.

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

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explanation:

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