What can be a synonym for the word frontier when referring to maps

This is a landform that is formed by the eruption of magma through a vent from the interior of the earth.

Which would take longer, to travel from St. Louis Missouri to Milwaukee, Wisconsin or St. Louis, Missouri to Miami, Florida

What is above the united states

How many countries are in West Africa

Why have many educated people left modern iran?

How does the age of the oldest continental crust compared to the age of the oldest ocean crust apex?

How does water enter the atmosphere? a. liquid water evaporates from lakes when heated by the sun. b. frozen water sublimates from ice and snow. c. liquid water is lost from tree leaves during evapotranspiration. d. all of the above

What were some of the results of Soviet control of Eastern Europe? Select all that apply. communism market economy collectives prices determined by government privatization restricted freedom of expression shortages of food

Fossilization: (A) needs oxygen to occur (B) requires protection from scavengers (C) can only occur in the ocean (D) is more common in sand than in mud

A capitalist country has which of the following economic systems?