Which Sequence Correctly Lists the Spectral Classes of Stars in Order

question 15

Multiple Choice

Which sequence correctly lists the spectral classes of stars in order from hottest to coolest?

• A) A B F G K M O
• B) O A B G F M K
• C) A F O B M G K
• D) O B A F G K M
• E) M K G F A B O

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Definitions:

Woodrow Wilson

The leader of the United States from 1913 to 1921, the 28th President, who played a pivotal role during World War I and was a staunch supporter of the creation of the League of Nations.

Russian Revolution

A series of political upheavals in Russia in 1917, leading to the overthrow of the Tsarist autocracy and the establishment of a communist government under the Bolsheviks.

Soviet Union

A federal socialist state in Eurasia that existed from 1922 to 1991, known officially as the Union of Soviet Socialist Republics (USSR), and was a major world power during the 20th century.

Anticommunism

Opposition to communism, typically manifested in policies or practices aimed at preventing the spread of communist ideology.