What was the immediate effect of the united states dropping the atomic bombs on japan?
japan immediately surrendered and world war ii ended
the soviet union signed a peace treaty with the united states and the us
became the lone superpower
germany vowed to fight to the death against the americans and the nuclear age
began
european nations spoke out against the use of such weapons and nuclear
weapons were banned

The correct answer is: Japan immediately surrendered and World War II ended .

Explanation:

The United States detonated two nuclear uranium bombs over the Japanese cities of Hiroshima and Nagasaki on August 6 and 9 1945.

Faced with the Soviet invasion of Manchuria and the expected Soviet and American exodus on their islands, Japan decided to declare the unconditional capitulation, in order to prevent a potential third explosion.  So World War II ended.

It is estimated that at least 78,000 people have died by the explosion and the shockwave.

the emancipation proclamation was the aim of the war change to include the freeing of slaves in addition to preserving the union. the 13th amendment, which abolished slavery in the u.s. was passed on december 6th 1865.

as promised, lincoln waited to unveil the proclamation until he could do so with success from the union military advance. on september 22nd 1862, after a victory at antietam, he publicly announced a preliminary emancipation proclamation, declaring all slaves free in the rebellious states as of january 1st 1863.