Was learning to farm a cause or effect of native Americans?

Answer 1

Many tribes of the America's farmed long before Columbus was born; in fact central American tribes had (horticulture) research stations built to study growth requirements of potatoes. They also farmed cocco, tomato's, corn, etc.
The "Milpa" crop system grows far more calories per acre than traditional European farming; but, you cannot use a machine to farm that way so it is not used.

I would also add, that Europeans learned a lot about farming from Native Americans.

Answer 2

Learning to farm was both a cause and effect of Native Americans. The adoption of agriculture allowed Native American societies to transition from a hunter-gatherer lifestyle to settled agricultural communities, resulting in increased population and cultural development. On the other hand, the challenges and changes brought about by farming also influenced Native Americans to learn and adapt their agricultural practices over time.