Full-time farmers in the United States and Canada differ from those in other parts of the world because O
their work is driven by technology.
O they produce crops primarily for selling.
their farms are rarely family run.
O they do not allow farms to be left fallow.
their products are for domestic use and export.

This is what i found “getting into the technicalities, the continental crust has a density of around 3.0 g/cm3 compared to 2.6 g/cm3 of the continental crust. in addition, the continental crust is much thicker than the oceanic crust. the recycling process does not happen to the continental layer.” i hope this you for what your looking for. can you plz mark me brainliest?

Answer volcanic eruptionsseismic waves from earthquakes;

D. i believe that doesn't even exist.