SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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light waves
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sound waves
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seismic waves
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ocean waves
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Detailed explanation-1: -P waves can travel through liquid and solids and gases, while S waves only travel through solids. Scientists use this information to help them determine the structure of Earth .
Detailed explanation-2: -Knowing how the waves behave as they move through different materials enables us to learn about the layers that make up the Earth. Seismic waves tell us that the Earth’s interior consists of a series of concentric shells, with a thin outer crust, a mantle, a liquid outer core, and a solid inner core.
Detailed explanation-3: -So scientists rely on seismic waves-shock waves generated by earthquakes and explosions that travel through Earth and across its surface-to reveal the structure of the interior of the planet.
Detailed explanation-4: -At all distances from the focus, mechanical properties of the rocks, such as incompressibility, rigidity, and density, play a role in the speed with which the waves travel and the shape and duration of the wave trains.