Answer:
the answer isn't letter B. magnetic fields of Earth.
Explanation:
D. To keep different races and ethnicities separated in order to avoid conflict.
<span>Societies in which one major, the dominant ethnic group comprises most of the population are referred to as </span>homogeneous cultures.
The distance between Perth and Brisbane is about 2,241 Miles and the distance between Darwin and Hobart is about 2,321 Miles.