Early society Japan was isolated due to geographic isolation from the rest of the world, which basically means that due to natural barriers between other civilizations. (in this case, natural barrier of oceans since Japan is a chain of islands or an archipelago)
Answer:
A rainbow is caused by sunlight and atmospheric conditions.
Assuming this involves another form of shifting tectonic plates, the answer would be earthquakes. Another form of the question is asking for continental drift.
