The Rule of 70 States That a Variable's Approximate Doubling

question 165

Multiple Choice

The rule of 70 states that a variable's approximate doubling time equals:

• A) 70 times the growth rate.
• B) the growth rate divided by 70.
• C) 70 divided by the doubling time.
• D) 70 divided by the growth rate.

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Definitions:

Crustal Thickness

The measure of the depth of the Earth's crust, varying from the thinnest beneath the oceans to the thickest under high mountains.

Compression

A force that acts to compress or squeeze materials together.

Deposition

The geological process in which sediments, soil, and rocks are added to a landform or land mass, typically influenced by water, wind, or ice.

Crustal Material

Any geological materials that make up the crust of the Earth, encompassing rocks, minerals, and sediments.