<span>An increase in scientific and medical discoveries improved life expectancies.
</span>The best possible explanation for the changes in Europe's population since 1750 is that an increase in scientific and medical discoveries improved life expectancies.In fact, it was around this type that basic hygiene norms were implemented, as well as some mortal diseases were cured or to improve lifbetter treated. Moreover, the discovery of vaccinations helped greatly to improve life expectancies.
PROTECTORATES. The political system that the European countries set up that caused conflicts in the Middle East, is the protectorates political system.
Religions like Taoism and Confucianism have Hindu influence, while Islam is a relatively new religion itself.
The answer is Iron because the Iron Age lasted roughly from 1500 BCE to 500 BCE.