Please help it is wiry important

What was the purpose of the u.s navy's convoy system

Which of the following elements is not typical of an advanced society? a. cities b. science c. industries d. and nomadic lifestyle

How was hitler able to take control of czechoslovakia? ? a) czechoslovakia was forced to break its alliance with france & the soviet union to appease hitler b) without resistance, he extended his control of the sudetenland to include all of czechoslovakia c) the czechs reluctantly agreed to provide “lebensrum, or living space to the germans d) he was given czechoslovakia by great britain and france in keeping with the policy of containment. appreciate the