Unit 1, Lesson 1 The Earth Review

  1. List the three major regions of the earth, in order from inner most to outermost.

Core, Mantle, Crust

  1. What is the predominant mineral of the core?


  1. What are the main components of the mantle?

oxygen, silicon and magnesium

  1. What parts comprise the crust? Define each layer.

Continental layer- the crust located under land masses

Oceanic layer- the crust located under the oceans.

  1. The lithosphere is composed of both the crust and the upper portion of the mantle.
  2. The lithosphere sits on the asthenosphere which has currents that slowly move the lithosphere plates.
  3. Adjacent tectonic plates that are moving away from each other are on a divergent boundary.
  4. Oceanic ridges are examples of divergent boundaries.
  5. Adjacent plates moving toward each other have convergent boundaries.
  6. What is subduction?

Subduction- one plate goes below the other (The result of convergence)

  1. What is a transform fault?

a strike-slip fault occurring at the boundary between two plates of the earth's crust.

  1. Which two boundaries or faults will most likely generate earthquakes?
Which two plates have a diverging boundary

Answer the following questions in relation to the diagram above.

  1. Which two plates have a diverging boundary?

Cocos Plate and Nazca Plate

  1. Which two plates are moving sideways from each other? What type of boundary or fault is this called?

Pacific and North American plate. Transforming boundaries/faults

  1. The Cocos plate and the Caribbean plate have a Diverging boundary.
  2. How are earthquakes measured?

Richter scale (0 to 10+) 7 or more = massive damage

  1. How are tsunamis generated?

Underwater earthquakes can set off a tsunami

  1. Volcanoes are typically found at what boundaries or faults?

Volcanoes can form both at divergent and convergent boundaries.

  1. Review the diagram, Fig. 4, on plate movement with animal similarities. Do fossil records support the long-term process of continental drift? How? Choose an example.

Figure 4 reveals evidence of Pangea. For example, fossil evidence of the Lystrosaurus was found in Africa, India, and Australia. This information can lead to the hypothesis that at one point in the past, earth’s continents were all connected.

Want latest solution of this assignment

Submit Your Assignment Here

AssignmentHippo Features

On Time Delivery

Our motto is deliver assignment on Time. Our Expert writers deliver quality assignments to the students.

Plagiarism Free Work

Get reliable and unique assignments by using our 100% plagiarism-free.

24 X 7 Live Help

Get connected 24*7 with our Live Chat support executives to receive instant solutions for your assignment.

Services For All Subjects

Get Help with all the subjects like: Programming, Accounting, Finance, Engineering, Law and Marketing.

Best Price Guarantee

Get premium service at a pocket-friendly rate at AssignmentHippo


  • Assignment Writing Guide
  • Essay Writing Guide
  • Dissertation Writing Guide
  • Research Paper Writing Guide


  • Accounts
  • Computer Science
  • Economics
  • Engineering

Client Review

I was struggling so hard to complete my marketing assignment on brand development when I decided to finally reach to the experts of this portal. They certainly deliver perfect consistency and the desired format. The content prepared by the experts of this platform was simply amazing. I definitely owe my grades to them.

Tap to Chat
Get instant assignment help