FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 2: Internal Structure of Earth and Plate Tectonics

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 41

True/False

Review LaterAdd Note

Review Later

Subduction zones commonly feature submarine trenches which have some of the deepest ocean waters,reaching several kilometres in depth.

Correct Answer

verified

Show Answer

Question 42

Multiple Choice

Review LaterAdd Note

Review Later

The youngest seafloor rocks are found

A) nearest to the mid-ocean ridges.
B) nearest to the continental shelves.
C) evenly distributed throughout the ocean.
D) underneath the continents.
E) where the ocean is the flattest.

Correct Answer

verified

Show Answer

Question 43

Essay

Review LaterAdd Note

Describe the balance between the birth and destruction of crust on the seafloor.

The Earth's magnetic field is generated by

During subduction,one plate sinks under another tectonic plate.

Iron-bearing minerals in volcanic rocks formed at spreading ridges can align with the Earth's magnetic field.

Mount St.Helens is a volcano associated with which type of lithospheric plate boundary?

Describe the theory of continental drift and explain how it relates to plate tectonics.

The Earth remains a constant size due to the balance of plate destruction in subduction zones and production of new lithosphere at spreading ridges.

Where would you find ridge push?

Volcanic activity can result from hotspot activity and divergent plate boundaries.Explain where and how the magma for each of these volcanoes comes from and how it rises to the surface.In this explanation,briefly describe the layers of the Earth and how convection is a mechanism for plate tectonics.

Describe how the Hawaiian Islands were formed and explain how they are evidence for plate motion.