Let's say that a researcher administers a new type of vitamin supplement to a sample of 30 rats. thirty other rats didn't receive the supplement. later, he compares the weights of the supplement group with the non-supplement control group. in this case the rats' weights are an example of which type of data?

answer; i believe that the correct answer is (d); // supercontinent

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.