PLEASE I DESPRITALLY NEED HELP Why did European nations develop new weapons in the early 20th century?

to prevent a war
to eliminate the need for artillery
to prepare for a possible war
to reduce the size of the military

Which two investment options would be best if you were planning to invest $10,000, with the expectation that you would be making a down payment for a house in 10 years? consider the kind of investment, rate of return, level of risk, and other factors. (4 points)

What decision were made by the first congress during its first year that shape the future of the government

How long is a representative’s term of office