The 41,000 Year Variation in the Tilt of Earth's Axis

question 44

Multiple Choice

The 41,000 year variation in the tilt of Earth's axis is called the ____. ​

• A)precession cycle
• B)eccentricity cycle
• C)obliquity cycle
• D)solar cycle
• E)glacial cycle

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Definitions:

Czar Alexander II

The Emperor of Russia from 1855 to 1881, known for emancipating the serfs in 1861 and implementing significant reforms.

Communist Rule

A system of government where the state plans and controls the economy and a single, often authoritarian party holds power, claiming to make progress toward a higher social order in which all goods are equally shared by the people.

Crimean War

A military conflict fought from 1853 to 1856 in which Russia lost to an alliance of the Ottoman Empire, France, Britain, and Sardinia, highlighting the frailties of the Russian military.