
Concept explainers
The fraction of the total volume of the Earth occupied by the crust, the mantle, and the core respectively.

Answer to Problem 16Q
Solution:
Explanation of Solution
Introduction:
The Earth is made up of three portions that are named as following:
1. The crust which is the outermost portion of the Earth having depth of about
2. The core which is the innermost portion of the Earth.
3. The mantle which is in between the crust and the core and constitutes maximum volume of the Earth.
The volume of the Earth is proportional to the cube of its radius. This can be expressed as:
Here
Explanation:
The Earth consists of three layers beneath its upper surface. These are the core (innermost), the mantle (middle) and the crust (outermost).
The crust does not go beyond
The volume of the Earth
Substitute
The volume of the mantle
Substitute
And, the average volume of the crust
Substitute
Conclusion:
Hence, the fraction of the crust to the total volume is
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