Edwin Hubble Used Cepheid Variables to ________

question 44

Multiple Choice

Edwin Hubble used Cepheid variables to ________.

• A)establish that the universe was very, very large
• B)formulate the big bang theory
• C)deduce that the universe was expanding
• D)calculate the density of a neutron star

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Definitions:

Lithosphere

The rigid outer layer of the Earth, comprising the crust and the upper part of the mantle.

Mantle

The layer of the Earth located between the crust and the outer core, composed of silicate rocks that are rich in magnesium and iron.

Isostasy Principle

A geophysical principle that explains the equilibrium of the Earth's crust, where it floats at an elevation that depends on its thickness and density.

Mantle Strength

The measure of the Earth's mantle's ability to withstand stress without deforming, crucial in understanding plate tectonics and geological processes.