Which people were considered black under apartheid

The Population Registration Act of 1950 provided the basic framework for apartheid by classifying all South Africans by race, including Bantu (black Africans), Coloured (mixed race) and white. A fourth category, Asian (meaning Indian and Pakistani) was later added.

the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks

i'm sure the answer you are looking for would be

a. an ice age

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