List examples of japan's vulnerability to allied air attack in late 1944. what type of u. s. aircraft was used for the heaviest bombing of japanese targets?

Japan's vulnerability included of its air force being on the brink of destruction and that the cities were constructed of flammable materials so it would burn up if there was a bombing.

U.S. aircraft used for heaviest bombing is B-29 Super Fortress.

No one knows sorry. : )