Question

As farming became more productive, more people were able to _____. practice soil conservation move from place to place spend more time farming engage in manufacturing

Answer 1

As farming became more productive, more people were able to engage in manufacturing.

Answer 2

as farming became more productive, more people were able to :
Engage in manufacturing.
Rather then rely on manual labor, machine-based labor will reduce overall cost and will lead to big increase in profit.