How did desertification affect early human civilizations in northern Africa?
1 of 4 QUESTIONS
it forced them to migrate farther south
It pushed them to develop sailing technology
It made their land more valuable for farming
N
It gave them control over important trade routes

aug 15, 2012 - although van leeuwenhoek was not the inventor of the microscope, he advanced it more he loved to grind and focus a new lens in order to see the unseen world. most of leeuwenhoek's microscopes were silver. in a simple but significant experiment (1668), he demonstrated that worms found on

it increased the power of the king of england.

which specific shipwreck are you talking about?

after the spaniards introduced horses to plains native americans, the lives of the tribes changed. tribes became less settled and sedentary. the horse allowed them to hunt animals such as bison or buffalo, and, instead of staying in one place, tribes began to be nomadic.