1. C--the automation of jobs: as technology increased manufacturing jobs were filled by technology leaving other jobs to be created. The service sector was the result of that innovation.
2. B--prosecute members of the Communist Party: The Smith Act made threats to overthrow the government illegal. Since communist is based on the overthrow of a government, this act justified the search and investigation of communists.
The answer is Canal. Canals are human-made channels for water movement, or to administration water transport vehicles. In the vernacular, both are alluded to as 'trenches', and as a rule, the built works will have a progression of dams and bolts that make territories of the low-speed current stream. These territories are alluded to as 'slack water levels', frequently just called 'levels'.
Algeria is where he began teaching. He taught about Christianity and so forth.
