Why Was the Problem of Devising a Workable Yearly Calendar

question 30

Multiple Choice

Why was the problem of devising a workable yearly calendar so difficult on Earth?

• A) the Earth's rotation period does not divide evenly into the Earth's period of revolution
• B) The day is based on what the Sun does, but the year is based on what the Moon does
• C) The length of the Earth's year varies from year to year
• D) The calendar only works at Greenwich, England, and it gets further and further off as you move eastward in longitude
• E) Various Popes of the Catholic Church disagreed about how long the day should be

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A neurotransmitter involved in motivation, pleasure, and reward, influencing movement, learning, and emotional responses.

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The organ located in the skull, responsible for coordinating movement, interpreting the senses, producing thoughts, emotions, and storing memories.