Sarah is a geologist who studies the effects of erosion. she is trying to figure out the original age and height of a mountain based on how much of the mountain has been eroded.

the word underlined in the sentence above can best be defined as
a.
sunk due to the movement of the earth’s plates
b.
grown slowly in height and width
c.
transformed into a new object
d.
worn away slowly

what word is underlined

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.

what events in mexico's history might explain why the country continues to have difficulty improving social justice and economic opportunities for all people?