You are presented with the quiz "When would animal burrows need replacing?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "building housing developments usually requires replacing animal habitats" and "habitat Hairy-nosed wombats are terrestrial and build burrows". So, what's the best answer to the question?
Pick from: [i] the wearing away of rock; [ii] when the population is safe; [iii] when nothing has changed; [iv] when the animals are happy; [v] building housing developments; [vi] a hemisphere is tilted away from the sun; [vii] Temperature changing; [viii] after too much water received;
Answer:
[v]