What countries do the Amazon Rainforest, Amazon River and Andes mountains cover in South America?

The river system originates in the Andes Mountains of Peru and travels through Ecuador, Colombia, Venezuela, Bolivia, and Brazil before emptying into the Atlantic Ocean. Roughly two-thirds of the Amazon's main stream is within Brazil.

the following best describes postwar era writers in their works:

many writers,authors,novelists,poets concentrated more on social art and social writing and stayed away from political writings.

it granted civil rights to african americans.