Why Does Earthquake Shaking of Water-Saturated Sand Often Lead to Ground

question 15

Multiple Choice

Why does earthquake shaking of water-saturated sand often lead to ground settling?

• A) The shaking of sand leads to closer packing of the grains.
• B) The shaking wears off the edges of the grains making them smaller.
• C) The shaking makes the grains settle in the water.
• D) It doesn't. Settling only occurs if you pump water out of the ground.
• E) Shaking rearranges the atoms in the grains, allowing them to fit closer together.

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Definitions:

Air Sacs

Air sacs are part of the avian respiratory system, providing birds with the ability to engage in highly efficient gas exchange.

Warm-Blooded

Organisms, primarily mammals and birds, capable of maintaining a constant body temperature regardless of environmental conditions.

Variable Body Temperature

Condition where an organism's body temperature fluctuates based on external environmental conditions, typically seen in ectothermic animals.

Hard-Shelled Egg

An egg with a calcerous or hard outer shell, providing protection and a contained environment for the developing offspring.