The california water allocation is a classic example of a zero-sum game, in which any benefit to one party equals a loss to another party.
true / false.

reflecting point a across the origin negates both of its coordinates.

b = (5, -4)

the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks