It is used to display the orientation of the cardinal directions. And their intermediate points.
Same radius and have the same charge
1.) Coastal environments, deserts, mountain environments, savanna grasslands, and forests.
2.) Each ecosystem has a different climate and people and animals who have adapted to these climates differently than the other environments. Each environment has its own resources there that the other might not have for them to survive.
~Anything you say huh, well I say sleep well tonight!