What was the most significant impact of russian explorers of the northwest?
a. they established farms.
b. they established numerous cities and towns.
c. the established fur-trading network.
d. they established iron mines.

Thomas jefferson was important in the revolutionary era because a) he wrote much of the declaration of independence. b) he was elected the president of the continental congress. c) his philosophies were used in the influential pamphlet common sense. reactivate d) his leadership and moral stand lead to the colonies to fight for the abolition of slavery.