<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.
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Answer:The answer is A.(landing a man on the moon)</h2>
Explanation:I got it right
The meridian line is the line that splits the Earth in half from North to South.
It was the Battle of Manassas (also known as the Battle of Bull Run) that was the first major Civil War battle were heavy casualties occurred, since this took place only months after the war began.
