Which Correctly Describes the Size and Thickness Variation in Pyroclastics

question 12

Multiple Choice

Which correctly describes the size and thickness variation in pyroclastics relative to the composite cone they came from?

• A) Size decreases, but deposits thicken downslope and then thin with distance.
• B) Size increases, and the deposits get thicker away from the vent.
• C) Size and thickness both decrease uniformly away from the central vent.
• D) Size increases then decreases with distance, but deposits are the same thickness.

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Definitions:

Lifting Object

The act of raising or moving an object from a lower to a higher position through physical strength or mechanical means.

Intervertebral Disks

Cushion-like pads situated between vertebrae in the spine that act as shock absorbers and facilitate movement.

Back Problems

Issues or disorders affecting the spine or back muscles, often causing pain and discomfort.

Degeneration

The process of deterioration or decline in quality, function, or condition, often related to organs, tissues, or cells in the body.