Answer:
this is true
Explanation:
the desert the plains and swamps are all ecoystems
It occurs when and where there is not enough water to meet both demands and those of ecosystems to function effectively.
Leaders are greedy for more power and land, a large population requires more food, neighbors are becoming to strong
Cliffs will form due to weathering.
As I said in your other post/question on the same topic, you have to rephrase your question in order for us to help you. =)
