What was the goal of the yalta conference?

What was the overall impact of eli whitneys introduction of interchangeable parts?

Why did the crew of the zong ship throw some captive africans overboard? a. there was not enough space in the ship. b. the captives’ deaths were covered by insurance. c. the ship did not have adequate food. d. the ship did not have sufficient crew to care for the sick captives. e. the african captives rebelled against the crew.

Which of these were effects of mass production techniques used during 1920s