How does paragraph 4 serve as an effective ending to Lincoln's speech? A. It calls upon listeners to support the war whatever the consequences may be.
B. It summarizes Lincoln's rationale for advocating for the abolition of slavery.
C. It presents a plan for convincing the South to surrender to the North.
D. It develops a vision for the country to move beyond the conclusion of the
war.

The following passage describes an example of __negative externality in the 1980s, manufacturing power plants in the midwest burned coal with high sulfur content, which when released as smoke, mixed with moisture in the atmosphere to create an acid that blew into canada and new england. the acid fell to the earth in the form of rain, killing fish and causing deforestation and building deterioration.