How did increased interconnectedness affect the post-classical world? The Crusades & Black Death

Some european explorers sailed west looking for the passage to india

Sociology is best described as the systematic study of

Which of the following policies is an example of a command-and-control policy? a. subsidies to education b. maximum levels of pollution that factories may emit c. tradable pollution permits d. none of the above is an example of a command-and-control policy.