I’m not sure what your referring to this question as but over time our society advances or makes new cities and we have to cut down trees and plants in order to make these cities. Trees produce oxygen which we need to breathe and if we keep cutting them down then our oxygen supply is going to decrease. Needless to say the more humans evolve the more our environment evolves.
Japan and china.
hopefully that helps....... <span />
THE GROUP OF PEOPLE IS ETHNIC
Adam's Apple
Men and women, but mostly men, if you touch your throat, you can feel a hard lump.
Law of the Twelve Tables, Latin Lex XII Tabularum, the earliest written legislation of ancient Roman law, traditionally dated 451–450 bc.