Question

the first atomic bomb used in war was detonated in what city? nagasaki hiroshima kokura

Explanation:

On August 6, 1945, the United - States dropped an atomic bomb on Hiroshima, Japan, which was the first use of an atomic bomb in war. Nagasaki was bombed on August 9, 1945, and Kokura was a secondary target.

Answer:

Hiroshima