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

Answer// dinosaurs emerged during mesozoic era;

A. it is created from magma. the agents of a metamorphic rock is heat and pressure. (heat from intrusion of magma or burial)

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