Which erodes faster-limestone, sandstone, or magma rocks?

I'm pretty sure its limestone, if not, then its sandstone

Depends on the erosion factors... If the factor is an acid rain then the limestone is the first one. If  the factor are wind and water, then the sandstone is the first one. In any case scenario, the magma rocks are the last, it is difficult to erode  

The beach , myrtle beach sc

Answer (true);