The Following Questions Refer to the Description and Figure Below

question 66

Multiple Choice

The following questions refer to the description and figure below.
The figure represents a cross section of the sea floor through a mid-ocean rift valley, with alternating patches of black and white indicating sea floor with reversed magnetic polarities. At the arrow labeled "I" (the rift valley) , the igneous rock of the sea floor is so young that it can be accurately dated using carbon-14 dating. At the arrow labeled "III," however, the igneous rock is about 1 million years old, and potassium-40 dating is typically used to date such rocks. Note: The horizontal arrows indicate the direction of sea-floor spreading, away from the rift valley.

Figure 25.1
-Assuming that the rate of sea-floor spreading was constant during the 1-million-year period depicted above, Earth's magnetic field has undergone reversal at an average rate of once every

• A) 10,000 years.
• B) 25,000 years.
• C) 100,000 years.
• D) 250,000 years.
• E) 1,000,000 years.

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Definitions:

False Classification

Incorrectly categorizing an item, instance, or phenomenon, leading to potential misunderstanding or error.

White National Pride

A controversial ideology focusing on national identity and pride within the context of White heritage, which is often associated with racial exclusivity.

Valid Argument

An argument whose conclusion logically follows from its premises, where if the premises are true, the conclusion must also be true.

Affirming the Antecedent

A logical fallacy where it's assumed if the first condition is true, the second must also be true, given the first implies the second.