What is the land like in Australia?
It varies. There are vast deserts, and both arid and semi-arid lands; there are grasslands, and tropical rainforests; but there is also plenty of rich, fertile crop land which puts Australia in the enviable position of being able to be self-sufficient, if it ever needed to.
Does a plateau have a few trees?
Different plateau have different amounts of vegetation. Some are completely bare and treeless, whilst others are filled with trees and vegetation.