What Is the Main Reason Why the Age of Oldest

question 45

Multiple Choice

What is the main reason why the age of oldest rocks can vary from one part of a continent to another?

• A) older rocks are commonly remelted over huge regions
• B) older rocks have been uplifted and eroded away
• C) large parts of the continent are subducted deep within the mantle
• D) parts of the continent have been added by the accretion of tectonic terranes

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Electoral districts that elect only one representative to a legislative body, typically by a simple majority vote.

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An electoral system where parties gain seats in proportion to the number of votes cast for them, as opposed to a winner-take-all system.

Andrew Jackson

The seventh President of the United States (1829–1837) known for his populist approach, founding the Democratic Party, and policies leading to the Trail of Tears.

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