Answer:
Explanation:
There are hundreds of ethnic groups in Eastern Europe. The largest would have to be the Russians, the Ukrainians, the Romanians, the Greeks, and the Turks. Large immigrant ethnic groups would be such as Chinese, Afghani, Pakistani, and Indian.
To keep the species from dying off.
The astronomers provided a new way of looking at things through exploration. Their example was followed by others who soon began exploring, leading the world into the Renaissance.