<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.
<span>D. The roles of military personnel and diplomatic workers have begun to overlap.
is the answer because many civilian positions have begun to take a role in the military chain of command</span>
Answer:
The French and Indian war also called the Seven Years War (1754-63) was fought between the British and France, each being supported by American Indian Allies. The cause of the War was specific issue of Upper Ohio River valley in North America. Both the parties claim it as their part of Empire, which lead to the war known as French and Indian War.
It is in the 20 th century
