Which describes a major challenge facing the builders of the transcontinental railroad?

A.

bridging the Rio Grande River

B.

spanning the Grand Canyon

C.

tunneling under Lake Erie

D.

crossing the Sierra Nevada mountains

Was the Monroe Doctrine fundamentally consistent with the isolationist principles established by George Washington in his Neutrality Proclamation and Farewell Address?

How are workers both consumers and producers? How does a consumer affect a producer? Give at least two ways.

what universities or colleges were available in Virginia during 1800-1839 and what courses were taught there?

What did lincoln steffens, jacob riis, ida tarbell, and john spargo have in common?

When you are traveling from the east to the west and you cross the international Dateline do you repeat a day or lose a day?

What was the most significant cause of the controversy

What is congressional reapportionment?

Maritime commerce was divided between the Mediterranean world and the northeastern Atlantic world for centuries. Identify the events that transformed this system in the late thirteenth and early fourteenth century.

A sentence using prehistory?

The transition from hunting and gathering to herding and farming gave rise to various civilization in different parts of the world which of the following phrases if substituted for civilization in the sentence above would best retain the meaning of