Answer:
Trace fossils include footprints, trails, burrows, feeding marks, and resting marks.
Explanation:
Answer:
b
Explanation:
because the answer is obvious
Because of the soil the rocks are in. If They stayed in that soil for a while which affected the compounds, shifting the mineral composition.
I think is D i hope this helps
Water molecule, skin cell, E. Coli Bacteria, grain of salt, human
