What time in the past does "prehistoric" refer to?

What two languages stand as language families all their own? Korean Chinese Filipino Japanese

Why does much of South America have the potential to produce hydroelectric power?

6. What is coastal armoring? How does coastal armoring impact sediment transport? Do you think this is a good investment? Why or why not? What other alternatives do we have to coastal armoring?

If extinction is a natural process (i. e., extinctions have occurred long before the arrival of humans on earth), why are many scientists so concerned about extinction rates today? Use your critical thinking skills in responding.

Which tribe eventually allied with the wichita to promote trade

Why is south america's pacific coast so dry?

Which of Earth's resources can be transformed into a solid, a liquid, or a gas? a. air b. water c. soil d. wind

Which mountain ranges resulted from the collision of what is now the indian subcontinent with asia?

What Canadian landform covers about half of the country?. A) the Interior Plains. B) the Canadian Shield. C) the St. Lawrence Lowlands. D) the Yukon Territory

Answer True or False for the following questions. Costa Rica is south of Nicaragua. Cuba and Haiti share the island of Hisponilia. An archipelago is a narrow strip of land connected to larger land mass.