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Origin of Earth and Earth’s Crust

Overview

In this lecture, we’re looking at the origin of Earth, the different layers of Earth, water, and our atmosphere. Some key questions I hope you consider are:

  • Why are there oceans on our planet?
  • Why do we live on continental crust and not oceanic crust?
  • How old is the Sun? How old is Earth?

Instructions

For this assignment, you will need to answer the 2 questions listed below.

Question 1

a) Name and the theory that describes the formation of our solar system.

b) Outline the main events in the formation of our solar system.

This can be listed by bullet points. You need at least 4 bullet points, listing the main events.

Question 2

Below is a bimodal map (A) of the continental crust, height above sea-level, and oceanic crust below sea level. (B) shows the bimodal data, and (C) shows a cross-section view between the two types of crust.

Why does oceanic crust sit below the continents?

  • You will need to identify the 2 main reasons.
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