Australia has moved northward at a rate of several cm/year for many millions of years. Its climate

Question:

Australia has moved northward at a rate of several cm/year for many millions of years. Its climate is therefore likely to
have changed as it entered the band of latitudes centered on 30°S. Determine its northward rate of motion from exploration of the literature, and using its N–S dimension calculate how long Australia will stay in the arid band of latitudes. We are looking for a timescale here. Then discuss
how this climate change might be manifested in the landscapes of Australia, and what evidence you might look for to document either the climate history or the landscape response to it.