Which was not a short-term effect of the u. s. decision to drop atomic bombs over japan? a. the acceptance of the three non-nuclear principles b. radiation sickness due the effects of the bomb c. japanese citizens experiencing flash burns to the skin d. black rain coming from the sky .

Radiation sickness due to the effects of the bomb, Japanese citizens experiencing flash burns to the skin, and black rain coming from the sky are all short-term effects of the U.S.'s decision to drop atomic bombs over Japan. A long term effect is the acceptance of the Three Non-Nuclear Principles.