Answer:
Scientists could compare environmental conditions in the two sets of Australian reefs, because those reefs are more likely to be similar in many ways. This will help highlight the difference that is causing the threat.
Step-by-step explanation:
As shown in the question above, there are differences between threats to coral reef survival in southeastern Australia. This is because threats to the southeastern reefs have increased, while in the northwest they have decreased. It is clear that the environmental conditions between the northwest and southeast of this country are different, however, it is more common for coral reefs in these regions to show some similarities that allow scientists to study this discrepancy between threats between the two regions.
In summary, we can say that scientists could compare the environmental conditions in the two sets of Australian reefs, because these reefs are more likely to be similar in several ways. This will help to highlight the difference that is causing the threat.