What made land routes to asia dangerous to travel in 1492?
a. the spread of disease
b. bands of thieves
c. poorly established routes
d. hostile ottoman warriors

Which of the following could affect the human population? a hurricane makes landfall on an uninhabited island. a deadly virus emerges that can pass from human to human. a civil war breaks out in italy. a solar eclipse occurs.

In their competition for power nations raced to

What is the main idea of this excerpt