One reason Geology is important (besides the GED test) is that it helps us understand why and when earthquakes, volcanic eruptions, and tsunamis happen. If you live in Washington, this is important information!
To understand where earthquakes come from, first we need to understand a bit about the structure of the Earth.
Read the information and answer the questions. I've put the answers below for you to check your work.
Answers
1= a
2 = b
3 = The crust is about 40 kilometers deep under the continents. Since Africa is a continent, the crust is probably about 40 kilometers deep beneath it.
4 = a
5 = Since Earth's core is made of iron, which is magnetic, it follows that Earth has a magnetic field like a magnet does.