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

Fact 2: Developers plan housing tracts and build the houses on paper.

Given the two facts above, answer the question "Developers planning housing tracts usually requires replacing what?" with the following options: 
- food and shelter
 - animal pens
 - animal habitats
 - animal fur
 - important habitats
 - animal food
 - one celled organisms
 - loose soil


 

   animal habitats      