I also think that question 1 is a low-quality question.
It is given that researchersestimate that 7000 species are yet to be discovered. The actual number could be way higher and hence answer isn't necessarily true.
Regarding answer D:
Yes, it is said that Australia's flora and fauna is unique. However, it isn't explicitly mentioned that the rainforests differ from those of other countries. It is kinda implied but in my opinion if you talk about something this broad you can't infer that everything
...
It is given that researchersestimate that 7000 species are yet to be discovered. The actual number could be way higher and hence answer isn't necessarily true.
Regarding answer D:
Yes, it is said that Australia's flora and fauna is unique. However, it isn't explicitly mentioned that the rainforests differ from those of other countries. It is kinda implied but in my opinion if you talk about something this broad you can't infer that everything
...
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