1 What is the principal type of interregional migration today? Why? 2. What states are most immigrants to the US migrating to?

3. What is the most prominent, historical large-scale internal migration in American history?

4 What was the first intervening obstacle which hindered the American settlement of the interior of the continent? (think physical characteristics).

Why would the crystals in an intrusive igneous rock be larger than the crystals in a chemical sedimentary rock? a. intrusive rocks form beneath the earth's surface, so they cool very slowly, which produces larger crystals. b. chemical sedimentary rocks form from dissolved substances on the earth's surface with very high heat and cool very slowly, which produces smaller crystals. c. chemical sedimentary rocks and intrusive rocks have crystals of the same size. o d. chemical sedimentary rocks form deep in the earth, so they cool slower, which produces small crystals. € read question correct:

Whats the biggest sea in the world?

How far is a geographic second? a.) around 100 feet b.) around 1,000 feet c.) around 5,000 feet d.) none of the above