Answer:
Element Symbol Atomic weight Atoms Mass percent
Carbon C 12.0107 1 23.7894
Hydrogen H 1.00794 3 5.9892
Chlorine Cl 35.453 1 70.2213
Explanation:
A. Molten material
B. Magnetic stripes
D. Drilled core samples
A i think...................
It refers to how common or rare a species is relative to other species in a defined location or community I hope this helps