Adivergent plate boundary is a boundary at which two tectonic plates move away from each other. as the plates move apart, magma rises upward between them and erupts onto the ocean floor as lava. this lava cools quickly to form solid rock. over time, these hardened lava flows build up on top of each other and are uplifted by tectonic forces to form mid-ocean ridges. based on this information, what type of rock are mid-ocean ridges made of?
a. igneous rock
b. eroded rock
c. sedimentary rock
d. metamorphic rock

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.