3. Which volcanic belt borders the western coasts of North America and South America?

The western coasts of North America and South America are part of the Ring of Fire volcanic belt.

Explanation:

The western coast of both North and South America is a highly tectonically active area. There are numerous volcanoes along the western coastlines of these two continents. They are actually part of the biggest volcanic belt on Earth, the Ring of Fire.

The Ring of Fire is a volcanic belt that roughly outlines the Pacific Ocean, thus it stretches along the eastern coasts of Australia and Asia, and the western coasts of North and South America. The reason why this volcanic belt is so massive and is located where it is is because of the numerous subduction zones. The Pacific, Phillipino, Sunda, and Nazca plates are subducting below the continental plates they are forming a convergent boundary with, like the Australian, Eurasian, North American, and South American plates.

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.

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