About 1.6-1.9 million years ago the planet entered the epoch, that has also been called the "ice age.":

In a mercantilist system a country tries to increase its blank and decrease its blank

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies? a. it's a region that exhibits a weak gravitational pull, thus maintaining a safe distance from the sun. b. it's an area that doesn't experience any major weather events that could cause mass extinctions. c. it's an area that's an optimal distance from the sun for potentially supporting life. d. it's a region that's unaffected by asteroid or meteor impacts.

Explain one positive effect of devolution. use a historical or contemporary example to support your argument.