I didn't do enviro science but this is my guess based on VCE outdoor ed & enviro bio at uni:
- conservation classification of species and how this depends on measures including changes in the geographic range and number of individuals within that range, the date the species was last recorded, and the extent of habitat
You should be familiar with IUCN categories (not evaluated, data deficent, least concern, near threatened, vulnerable, endangered, critically endangered, extinct in the wild, extinct)
You should be aware that low populations numbers (particularly a strong population decrease), restricted distribution, high habitat specificity, and the species being last recorded a lon time ago are not good signs
Threats to biodiversity
assessment of threat in defining conservation categories for a species and/or ecosystem, including extinct in the wild, conservation dependent, critically endangered, endangered, and vulnerable.
You should know what each of these mean, and that this assessment may change in response to new information. You should be aware of their relative severity, and be able to rank them in order. You should be able to broadly compare (brief overview) how species and ecosystem differ in terms of how threat is assessed.
projected consequences and uncertainties of the enhanced greenhouse effect on the four major Earth systems (atmosphere, biosphere, hydrosphere, lithosphere), and on the health of living things and on the environment, at a selected location.
- Eg. we predict that GHG will increase cloud cover, but the role of clouds in ACG is variable depending on their type - they could be our friend (reflecting energy back into space) or foe (trapping energy around earth)
- I would pick a selected location such as phillip island, and also do some broader reading just in case
Hope this somewhat helps