Answer:
D.
Explanation:
The rock that is left behind is there because it has resisted the forces of erosion.
The CH4 molecule has the lowest molecular weight, so it has the lowest boiling point.
Hope I helped :)
A calcium atom has 20 protons!
There you go! I really hope this helped, if there’s anything just let me know! ☻
Blow a lot of air into it you can stick an air pump and when your done pumping quickly put tape over the hole
