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The US consists of ...... contiguous states.

• 50

• 49

• 48

• 47

Which region of US is almost rainless in the summer, although there is often fog?

• Gulf of Coastal

• The Pacific coast

• Atlantic Coastal

• Great plain

.........is the largest and most important river in North America

In land area, the United States is the largest country in the world.

• True

• False

Which city is known as the federal district of United States?

• Las Vegas

• New York city

• Washington, D.C

• Los Angeles

Which river is the natural border between the United States and Mexico?

• Mississippi River

• Rio Grande River

• Colorado River

• Yukon River

Which lake is the largest of the Five Great Lakes of North America?

• Lake Michigan

• Lake Superior

• Lake Huron

• Lake Erie