Carbon dioxide, oxygen, water, and acids may all cause chemical weathering. Mechanical weathering is the process of breaking a large rock into smaller pieces without changing the minerals in the rock. Mechanical weathering may be caused by frost, ice, plant roots, running water, or heat from the sun.
A unicellular or single celled organism is the term for organisms composed of only one cell.
I hope this helped!
Zooplankton is what I would put
