1. A primary reason for Truman's decision to drop the atomic bombs on Japan was that he

Athought that it would lead to less deaths than a land invasion

Bthought that Japan was developing nuclear weapons

Cfeared a Soviet and Japanese alliance

Dwanted to retaliate for the Pearl Harbor attack



  1. Why was the Manhattan Project kept top secret?

AThe United States did not want Great Britain or France to know that it had nuclear technology.

BNo one was sure if the atom bomb would actually ever work and they didn't want negative feedback.

CThe Allies were afraid that the technology would be stolen by spies belonging to Germany or Japan.

DThe United States was developing the technology illegally and with stolen technology and materials.



  1. The Three Non-Nuclear Principles were intended to

Aprevent all nations from ever using nuclear weapons again

Brestrict the use of nuclear technology for energy and medicine

Ckeep Japan from ever developing or using nuclear weapons

Dinsure that Japan uses safe methods to produce nuclear technology

Verified Answer :

  1. A primary reason for Truman's decision to drop the atomic bombs on Japan was that he  thought that it would lead to less deaths than a land invasion. The correct option is option "A".

    2. "
    The Allies were afraid that the technology would be stolen by spies belonging to Germany or Japan" is the reason why the Manhattan Project was kept top secret. The correct option is option "C".

    3. 
    The Three Non-Nuclear Principles were intended to keep Japan from ever developing or using nuclear weapons. The correct option is option "C".