What social changes were most responsible for the 30-year increase in American life expectancy over the 20th century?

What does it mean to say that "service sector" jobs are predominant in europe's mixed economies today? a. that jobs where people work in factories predominate b. that jobs where people do something for others predominate c. that jobs where people work the land predominate d. that jobs in government predominate

When arriving at a navigation lock what is the order of priority

You so much! define faithfulness as it relates to god. use complete sentences.