I believe its lack of worthy projects, but ill tell you if im wrong.
Ice caps and glaciers is your answer.
I think your question is: after which Genocide was this the case?
It might have been more than one genocide, but it was definitely the case in the Rwandan Genocide. Specifically it is estimated that around 100 000 children live in such households. (but his data is from 2003, so in the meantime those children grew up)
Answer:
The Aztec, Maya, and Inca all farmed but had different techniques. The Aztecs built floating gardens while the Maya burnt down forests to plant gardens and the Inca farmed steep areas by building terraces. All three civilizations grew corn, beans, and squash.
The Hawaiian Emperor seamount chain<span> is a well-known example of a large </span>seamount<span> and </span>island chain created<span> by hot-spot volcanism.</span>
