No S Waves Pass Through the Center of the Earth

question 43

Multiple Choice

No S waves pass through the center of the Earth because:

• A) the crust absorbs all waves.
• B) the outer core is liquid.
• C) S waves travel only through liquids.
• D) S waves are compressional waves.

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Definitions:

Esker

A long, winding ridge of sand and gravel deposited by meltwater streams flowing beneath a glacier.

Meltwater Channels

Channels formed by the flow of water produced from melting ice or glaciers.

Glacial Sediment

Material deposited by glaciers as they move and melt, ranging from fine silt to large boulders.

Lateral Moraine

Sediment carried in and deposited along the sides of a glacier.