"An increase in scientific and medical discoveries improved life expectancies" is the one reason among the following choices given in the question that <span>is the best possible explanation for the changes in Europe's population since 1750. The correct option among all the options that are given in the question is the first option.</span>
Answer:
The Red scare posed a threat to the Untied States which it was also considered the biggest threat.
Explanation:
On the street of your dog ran
<span>Nevada and California is your answer</span>
