<u>Answer</u>:
The common thing between these three types of activities is that they form a production chain giving customers the provision of finished goods or services.
Primary production involves acquirement of raw materials for production like coal, metal, rubber tapping etc.
Secondary production involves manufacturing and assembly process that involves the use of such raw materials.
Tertiary production involves commercial services that support the production and distribution process.
All the processes occur in line with each other, where the working of one is essential for the other.
The aftermath of the Civil War was exhilarating, hopeful and violent. Four million newly freed African Americans faced the future of previously-unknown freedom from the old plantation system, with few rights or protections, and surrounded by a war-weary and intensely resistant white population.
Members of the House of Representatives are elected for an unlimited number of two-year terms. <span>They serve two-year terms and are considered for re-election every even year.</span>