What action did congress take in response to concerns about the effects of mechanization and industrialization on the environment?

The answer is: Congress set aside protected land

In the protected land , the utilization of resources and establishment of factories are prohibited. This set of protected land was intended to conserve a specific animals , plants, or environment so it would not be destroyed by the   effect of mechanization and industrialization.

answer; /// the answer to the first question is (b) it began when people first deliberately seeds; /// and (d); // it gave people a steady food supple for the first time;