Fact 1: Building housing developments usually requires replacing animal habitats.

Fact 2: Habitat Hairy-nosed wombats are terrestrial and build burrows.

Given the two facts above, answer the question "Building housing developments usually requires replacing what?" with the following options: 
- money
 - gold reserves
 - deuterostomes
 - one celled organisms
 - loose soil
 - swamp vegetation
 - animal burrows
 - clocks


 

       animal burrows  