One Possible Way to Decrease the Magnitude of an Earthquake

question 54

Multiple Choice

One possible way to decrease the magnitude of an earthquake is to ____.

• A)build more earthquake-proof structures
• B)replace rigid soil with soil that will liquefy during an earthquake
• C)use drilling equipment to dig into fractured rock and release pressure
• D)inject fluid into fractured rocks
• E)inject concrete into fractured rocks

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Definitions:

Dollar-Weighted Return

A measure of an investment's performance that takes into account the timing and amount of all cash inflows and outflows.

Geometric Average Return

The average rate of return on an investment that is calculated by multiplying n variables and then taking the n-th root of the product.

Arithmetic Average Return

The simple mean of a set of returns, calculated by summing the returns over a period and dividing by the number of periods.

Nominal Return

The amount of money gained or lost on an investment, without adjusting for inflation, as opposed to the real return which is adjusted for inflation.