The Generation of Earth's Magnetic Field,while Not Completely Understood,is Most

question 241

Multiple Choice

The generation of Earth's magnetic field,while not completely understood,is most probably influenced by:

• A) the flow of electrons and ions constituting an electric current in Earth's magnetosphere.
• B) electric currents in Earth's electricity-conducting molten core.
• C) permanent magnetism in Earth's crustal rocks and the iron core.
• D) electric currents in Earth's semisolid mantle induced by the motion of the solar wind flowing around Earth.

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Definitions:

Supply Curve

A graphical representation of the relationship between the price of a good and the quantity of the good that sellers are willing to offer for sale, holding other factors constant.

Horizontal Axis

In a graph or chart, it is the x-axis, representing the independent variable.

Equilibrium Quantity

Equilibrium quantity is the quantity of goods or services that is supplied and demanded at the equilibrium price, where the quantity supplied equals the quantity demanded.

Cross Elasticity

A measure of the responsiveness of the demand for one good to a change in the price of another good.