It is the another range formed by the natural process of the earth surface. After a thousand years, slowly the hills and plateaus turn into a plain land and sea also started to fill by the some debris at the end of Pleistocene period which converts into plain terai. This is how the single country Nepal was formed.
Answer:
The more power the empire inherits, they often become blind sighted when it comes to making the right decisions. The higher up in the ranks, the more privilege you receive, the lower in the ranks you are, you often receive neglect. The oblivious leaders are eventually overthrown by their people, or often times citizens created fights among each other.
The problem starts already earlier:wildlife experts can only estimate the number of species in the world generally!
This is the case because there are simply too many species, and it takes time to documents them; because some areas (ocean bottom for example) are very hard to access and because sometimes it's hard to know whether we're talking about a new species or a variation within the same species.
so if we even don't know how many species there are, it's even harder to know how many are endangered.
The increase of trade and transportation of animals or people.
