How is the Amazon River a barrier? Check all that apply.
A. It runs 6,400 kilometers, splitting the continent.
B. Tributaries are long and fanned out, splitting up the land.
c. It's hard to reach through the rain forest.
D. The water is often polluted with mercury.

What group has historically made up the largest portion of immigrants in mexico?

How would i answer this in a exam. orange - sea temperature is over 27 red arrows - tropical storm routes

Stone mountain was formed during the formation of the blue ridge mountains around 300-350 million years ago and is considered part of the appalachian mountains. it formed as a result of the upwelling of magma from within the earth's crust. this upwelling, or solidified to form the that became stone mountain.