What changes in soviet policy did krushchev make

 Khrushchev introduced de-Stalinisation to protect his own position by getting rid of Stalin's old supporters in the party, thus removing  old Stalinists in order to establish his own power base. This made the soviet union under Krushchev fall, therefore leaving the distracted united states unaware of the nuclear testing going on there, hope this was helpful have a great day!

The league of nations was found in 1919 to keep peace after world war l.but it failed to prevent world war ll in 1939,so in 1945 the nations of the world set up a new organization,the united state (un).since then, the un has encouraged international cooperation and worked to resolve conflict

The coast of north america , basically yes newfoundland , i would say c , good luck