Magnetic Reversals of the Earth's Field Have Occurred on the Average

question 32

Multiple Choice

Magnetic reversals of the Earth's field have occurred on the average every 200,000 years over the past 5 million years. When was the last magnetic reversal?

• A) about 200,000 years ago
• B) 1792
• C) about 990,000 years ago
• D) about 780,000 years ago

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Definitions:

Marginal Benefit

The extra value or enjoyment gained by using one more unit of a certain good or service.

Marginal Cost

This term describes the expense associated with manufacturing an additional unit of a particular item, crucial for understanding economies of scale and pricing.

Consumer Surplus

The difference between the total amount that consumers are willing and able to pay for a good or service and the total amount they actually pay.

Equilibrium Price

The market price at which the quantity of goods supplied is equal to the quantity of goods demanded, resulting in no excess supply or demand.