Global Positioning Systems (GPS)can "Know" Their Location by

question 36

Multiple Choice

Global positioning systems (GPS) can "know" their location by

• A)measuring the time required for radio signals from four or more satellites to reach the receiver.
• B)relating changes in detected radiation to changes in the position of the Sun.
• C)continually measuring changes in angle to a stationary reference point,such as a streetlight,in the area of the receiver.
• D)relating slight changes in magnetism and gravity to changes in the distance and direction of movement from the point at which the location of the receiver was last calibrated.

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Definitions:

Silica-rich Creatures

Marine organisms that have skeletons made primarily of silica, such as diatoms and certain types of sponges.

Gradational Boundaries

Transition zones where different geological formations or ecosystems meet and blend without a clear-cut separation.

Sedimentary Rock

Rock formed by the deposition of material at the Earth's surface and within bodies of water, characterized by distinct layers.

Sea Level

The average height of the ocean's surface between high and low tide, used as a reference point for measuring elevation or depth.