Answer:
The crust is the coldest layer of Earth. It floats on the fluid-like matter called the Mantle.
Explanation:
Indeed it was. So, yes, it's true.
When the Aryans ruled over the region
Because they have the most to lose, imagine it like you have 10 towers and all collapsed from a tsunami. And the village next to you also collapses. The ten towers lost way more money and people in it then the villages
In short answer, The developed country just simply has a lot more to lose then the lesser developed one.