The movement of which layer of Earth drives the motion of the plates on Earth's crust?
uoper mantle
lower mantie
outer core
inner core

In 1 or 2 sentences, define nationalism and give an example.

Drastic boundary changes can occur for all of the following reasons except for a. a shift in the way a river flows b. the collapse of a government system c. a conflict between two neighboring groups d. one country's decision to sell land to another country select the best answer from the choices provide

Which of the following emerging technologies uses the principle of chromosomes to identify suspects