<span>this causes some bias, because people without phones cannot be in the sample</span>
Answer:
This is the SCIENCE of cultivating plants and livestock.
Explanation:
OR:
the act of farming, cultivating of the soil for the growing of crops and rearing of animals for food,e.t.c.
The correct answer is currency which is letter b. This is the first development of Aksumites without having any pressure from the outside culture as their currency was coinage produced and were used to their Kingdom which held a great significance.
