Agood scientific question must be a. broad b. testable c. unusual d. debatable

answer: 1

explanation:

im pretty sure

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation:

propriety is the answer. hope this !

explanation:

your answer to this question is true hope this