Which kind of wind is most likely responsible for the movement of this weather system from Dallas to St. Louis and then to Pittsburgh?

O A. Trade winds

B. Westerlies

C. Southern polar easterlies

O D. Northern polar easterlies

pls answer fast

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages

When solid surfaces slide over each other the kind of friction that occurs is called friction

Each line (unit) on the horizontal axis represents: 5 years 10 years 20 years all of the above