Which national Park is an example of a supervolcano? a(Yellow Stone
b(Big Bend
c(Grand Canyon
d(Yosemite

Dont mind the subject btw.

What from the columbian exchange had perhaps the biggest impact on the world?

Why did trade along the silk road increase after it fell under mongol control? o people stopped using camels the mongols paved the road o it became safer to travel the mongols were better traders next question ask for

    which of the following was anecological  result of european exploration from 1400 to 1800?   a.  increased trade with east asia      b.  the spread of epidemic diseases      c.  expansion of english territory      d.  the spread of christianity