Answer:
Around the 19th century
Explanation:
In 1821, Boston started the first public high school in the United States. By the close of the 19th century, public secondary schools began to outnumber private ones.
Found that when I searched it up, hope it helps!
Answer:
However, as the art of tank battle and tank design progressed into World War II the average-sized tank would have a crew of four men: a driver, a gunner, a gun-loader/radio operator and a tank commander, all working as a team in their special positions within the tank
Explanation:
Answer: The answer is D
D because they had many scarce materials so they had to shift the process to war needs.
