<span>Mesopotamia means “the land between the rivers” in Greek.
those rivers are Tigris and </span><span>Euphrates</span>
Answer:
Drought, flood, and temperature changes could certainly push people to move on. Climate change also affects the food supply, and anthropologists have assumed that people came to the Americas because they were following food on the hoof.
Explanation: nver been wrong
Based on the given scenario above which describes about a certain bird specie and that their beak sizes makes a difference in survival, this would be considered as an example of NATURAL SELECTION. This is based on Charles Darwin's study. Hope this answers your question.
Preemption, is the answer you are looking for i believe.