B- are spaced closely together.
You can google ”steep slope map” and you will find some explanations if you need
Because the way that they stand and are
In order for the Earth to get larger, more mass would have to be added. Since no new mass is added in the process, It's size doesn't increase.
It is the expansion of poorly planned developments, spreads out over large amounts of land, putting long distances between homes, stores, and work.
