Im pretty sure its Habitat because they are very close factors between animals and environmental factors.
1)John G. Robert, Jr., Chief justice of the United States.
2) Clarence Thomas, Associate Justice
3) Ruth Bader Ginsburg, Associate Justice
4) Stephen G. Breyer, Associate justice
5) Samuel A. Alito, Jr., Associate Justice
6) Sonia Sotomayor, Associate Justice
7) Elena Kagan, Associate Justice
8) Neil M. Gorsuch, Associate Justice
9) Brett M. Kavanaugh, Associate Justice
Explanation: