W.E.B. Du Bois was born in Massachusetts in 1868. ... Du Bois briefly taught at a college in Ohio before he became the director of a major study on the social conditions of blacks in Philadelphia. He concluded from his research that white discrimination was the main reason that kept African Americans from good-paying jobs.
Explanation: The canal permits shippers of commercial goods, ranging from automobiles to grain, to save time and money by transporting cargo more quickly between the Atlantic and Pacific Oceans.
Answer:
At different times
Explanation:
The echo returns at different times, but faster in water. This is because water particles are bound closer and this makes them transmit vibration energy from one particle to the next quickly. An echo is a sound wave and sound waves are longitudinal waves that occur by the collision of particles to move the vibrations along, and this is why they move slower in air.
Answer:
A county seat is the town where a county courthouse is located.
Answer: Assurance
Explanation:
Assurance is the factor in terms of quality service that represents reliability and surety for providing complete customer satisfaction for the work. Tracking or monitoring action, resolving issues, handling customer complaints etc are done in prominent manner so that customer does not have further issues or complaint regarding quality of service .
According to the question, professor's reply within one hour is displaying assurance quality factor that helps in maintaining , handling and fixing issue of Jonathan achieving zero marks instead of actual scores. He replied soon with solving his issue of scores and reliability on service was displayed.