characterized the United States between the late 1870s and the 1930s. During this period, federalism resembled a layer cake in that each level of government was active in distinct spheres of jurisdiction. Cooperative federalism, which emerged in the 1930s, blurred those jurisdictional distinctions as the federal government expanded its involvement into policy domains previously handled by states. Until the 1970s, the federal government elicited the cooperation of states to achieve its objectives primarily by providing intergovernmental grants.

Gilded Age

Explanation:

Gilded Age is a term that is used to describe the period in which the economy of the United States grew at a faster rate compared to other periods in the nation's history. The period which lasted between the 1870s to early 1900s, witnessed an economic boom, active political participation, social reforms, and increased social thoughts.

Hence, in this case, the text provided in t question perfectly described GILDED AGE.

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.