What action did congress take in response to concerns about the effects of mechanization and industrialization on the environment?
congress limited agricultural production.
congress increased industrial regulations.
congress set aside protected land.

Congress set aside protected land. in response to concerns about the effects of mechanization and Industrialization on the environment.

Congress set aside protected land.

Explanation:

The protection land was called protected because it preserved animals and plants of that area and the government banned all kind of resource exploitation and industrialisation and mining which would harm the natural habitat of that area in any way.

Mechanisation and Industrialization affected the environment in every way possible. The animals were becoming endangered. Plants and water resources were depleting due to chemicals from factories and pollution was also affecting the nature.

d.summerains, the last one

d. the right to establish a one-house legislature