Yes, Japan like all other countries will have radioactivity. But not as much as say Chernobyl, or even Bikini Atoll.
No.
The specific radioactivity of polonium-210 is 4,5.10E3 Curies.
Probably to the Bible Belt area of the USA. Ending at Texas or maybe Louisiana if the wind is blowing.
most of the bombing of Japanese cities was mass firebombing with conventional incendiary bombs, no radioactivity was involvedthe radioactive fallout of the atomic bombs dropped on hiroshima and nagasaki did not disburse much further than a few miles away from the cities, even within the two cities themselves the residual radioactivity was not high enough to cause any acute illness and both cities were soon repopulated immediately after the end of the war (US occupation troops were also stationed in both cities and lived in barracks within the cities)
Radioactivity affect the water molecules. Radioactivity makes it harmful
What other sort of radioactivity is there?
The amount of radioactivity in the newly synthesized DNA will be equal to that of the original labeled DNA. Since the labeled DNA is used as a template for replication, the radioactivity is retained in the newly synthesized strands.
Radioactivity can be induced in ordinary matter by artificial transmutation.
no but she built the knowleage of radioactivity.
You cannot measure radioactivity in litres
NO. Henri Becquerel was the discoverer of radioactivity.