Mechanical and chemical weathering which layer of earth? Core, Mantle, Crust, Atmosphere, or other

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.

according to worldatlas.com, the u.s. has an 86% literacy rate.

which statement best describes the relationship between the fourteenth amendment and the african american civil rights movement?