The correct answer is casualties and devastation. Long-term effects of radiation exposure also increased cancer rates in the survivors.
The consequences of the atomic bombs dropped on Hiroshima and Nagasaki were disastrous. The consuming power of the bombs went beyond the destruction of places and people, reaching the area of genetics. The effects caused its survivors to pass on the injuries to the next generations. To this day, children are born with genetic problems caused by radiation from bombs.