How has earth changed during our current era?
a. the atmosphere change from carbon dioxide to oxygen
b. metamorphic rocks started to form
c. grass started growing across the world
d. the climate has warmed and become more humid
earth science/apex

The native americans, spanish, french and americans all name places in our state. the word “arkansas” came from the quapaw indians, by way of early french explorers. at the time of the early french exploration, a tribe of indians, the quapaws, lived west of the mississippi and north of the arkansas river.