In the early exploration of north america all of the following rivers were important except:

st. lawrence
hudson
mississippi
arkansas

D. Arkansas

St. Lawrence was discovered by Jacques Cartier who was hired by the king of France.

The first European to discover the Hudson was Giovanni da Verrazzano, who sailed past the River's mouth in 1524. It was not until 1609 that Henry Hudson explored the length of the River up to present-day Albany.

Hernando de Soto reaches the Mississippi River, one of the first European explorers to ever do so.

africa

explanation:

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