The inscription on marble gravestones become harder and hardeer to read over time. this is cause by?

yes your family should move to canada. canada is one the largest country in western hemisphere. and the second largest country in the world after russia. you should also move to canada because of the weather you can have snow and the sun. another thing is that the costing of living out there is not that bad to begin with. you have to know your rights.

explanation:

c. seafloor spreading occurs.

d. crust becomes molten rock.

e. denser plates slide under lighter plates.