If a Volcanologist Installs a Sensitive Seismometer Besides a Volcano

question 17

Multiple Choice

If a volcanologist installs a sensitive seismometer besides a volcano and it detects longer-period seismic waves this means that:

• A) magma is still in the mantle zone
• B) magma eruption is imminent
• C) only gases will erupt from the volcano
• D) no eruption is expected since short-period waves are the precursor for imminent eruption
• E) none of these choices are correct,we still don't know the meaning of these signals

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Definitions:

Satisfaction

The fulfillment or gratification of a need, desire, or appetite, often used in the context of consumer experiences with goods or services.

Demand Curve

A visual depiction showing how the quantity of a product demanded by buyers varies with its price.

Horizontal Summation

A method used to determine the total market demand or supply by adding together the quantities demanded or supplied at each price by all individuals.

Substitution Effect

The change in consumption patterns due to a change in the relative prices of goods.