Models of Earth — Unit test Answers

Which statement describes landforms?

What is the orientation of the magnetic stripes of iron contained in rocks that support the idea of seafloor spreading?

Which displays Earth’s curved surface on a flat model?

The table shows the thickness, top density, and bottom density of the different layers of the Earth. Thickness (km)Density (g/cm3)Types of Rock FoundTopBottomCrust302.22.9Silicic rocksUpper mantle7203.44.4PeridotiteLower mantle2,1714.45.6Magnesium and silicon oxidesOuter core2,2599.912.2Iron+oxygenInner core1,22112.813.1Iron+oxygen

The image shows a landform created by Earth’s forces.

Which statement best explains why Earth’s outer core is in liquid form?

What type of stress occurs when plates move apart?

Which features form along all types of plate boundaries?

Which coal field location is related to coal fields in the United States and supports the theory of continental drift?

The image shows a type of fault.

From which location does seafloor spreading originate?

Which is a common type of map projection?

Study this image.

Where does compression often occur?

Which landform rises abruptly from its surroundings and has a rounded or sharp peak?