common descent means the evolutionary in biology and how they have something linked with their common ancestors.
Answer:
Types of Chemical Weathering
Carbonation. When you think of carbonation, think carbon! ...
Oxidation. Oxygen causes oxidation. ...
Hydration. This isn't the hydration used in your body, but it's similar. ...
Hydrolysis. Water can add to a material to make a new material, or it can dissolve a material to change it. ...
Acidification.
A Organism, but I would say Multi Cellular Organism instead of just organism because a Unicellular organism only has one cell, and all higher levels are made of multiple cells