Aboriginal and Torres Strait Islander people constitute（）of Australia.s population.

A.Koalas and possums.
B.Emus and kangaroos.
C.Echidnas and platypuses.
D.Budgerigars and cockatoos.

A.oaks and elms　
B.palms and pines
C.willows and poplars　
D.eucalypts and wattles

A.the eastern coastal areas of Queensland
B.the Blue Mountains
C.the New England Tableland
D.the highest peaks of the Snowy Mountains and Victorian Highlands