I don’t understand the question. Sorry? Maybe try asking in a different way
Didn't read the book but mostly Louis was brave because he risked making vaccines and testing them on others to save many more people. He made the effort to save others and did a lot of work and experiments to help advance the medical world of science.
"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:
John Cabot and Pedro Cabral were among first European explorers that were sent to the New World and made significant discoveries. Difference is that Cabral was sailing under Portuguese flag and reached the shores of Brazil, while Cabot was sailing under English flag and reached the shores of North America.