You need to know all the dot points on the syllabus on one of the issues - you should have studied two but my teacher said if you are stretched for time in learning just learn the one you did as a RAP backwards. They can not ask for any specific issue as the syllabus gives schools a choice...
Here is the syllabus for issues:
– the geographical processes relevant to the
issue
– the perceptions of different groups about
the issue
– individual, group and government
responses to the issue
– decision-making processes involved in
the management of the issue
– management of the issue and implications
for sustainability, social justice and equity