Answer:
I think the answer is social contract.
Explanation:
I hope this helps!
"The reason why Britain didn’t declare war on the Soviet Union is an
intriguing one. Unknown to the general public there was a ‘secret
protocol’ to the 1939 Anglo-Polish treaty that specifically limited the
British obligation to protect Poland to ‘aggression’ from Germany" http://www.historyextra.com/qa/why-did-britain-and-france-not-declare-war-soviet-union-when-red-army...
It was named after Christopher Columbus
Answer:
New technologies and methods, such as improved fertilization and crop rotation, greatly increased food production.
Explanation:
This increased agricultural efficiency meant that less people were needed to work on farms and more could seek employment in growing urban industries
The Columbian Exchange was the widespread transfer of plants, animals, culture, human populations, technology, and ideas between the Americas and the Old World in the 15th and 16th centuries, related to European colonization and trade after Christopher Columbus's 1492 voyage
